Review: The 5 Best Plyo Balls for Baseball Arms

What if you could unlock a secret weapon to boost your fastball or improve your throwing accuracy? Many baseball players chase that extra edge. They want more power in their arm. They need better control when they pitch or throw from the outfield. Finding the right training tools can feel overwhelming. Plyo balls promise big gains, but which set fits your needs best? Do you need heavy ones or light ones? The choices can confuse even dedicated athletes.

Choosing the wrong plyo balls can slow down your progress. You might waste time and money on equipment that doesn’t match your skill level. This guide cuts through the confusion. We will clearly explain what makes a good plyo ball for baseball. You will learn how to select the perfect set for your training goals, whether you aim to increase velocity or refine your mechanics.

Keep reading to discover the secrets to using plyo balls effectively. We break down the features, benefits, and best practices so you can train smarter, not just harder. Get ready to transform your throwing game!

Top Plyo Balls For Baseball Recommendations

SaleBestseller No. 1
Weighted Baseballs 6 Ball Set: Increase Throwing Velocity & Arm Strength - Withstands 18,000 Throws - Weighted Balls for Pitching & Throwing - Plyo Balls - Ideal Training Tool
  • Unmatched Durability: Our Rewire Plyo Baseballs are built to last, enduring up to 18,000 throws and withstanding various surfaces, from concrete to wood. Focus on your progress, not on replacing equipment, with our resilient weighted softballs.
  • Unleash Explosive Arm Strength: Our heavy weighted balls for baseball have a progressive weight range (3.5oz to 20oz), heavy balls baseball offer the perfect resistance to build explosive arm strength, boosting your pitch velocity for dominating performances.
  • Train Smarter, Not Harder: Our Rewire weighted balls provide targeted training for optimal arm strength development. Minimize injury risk and maximize your gains with our scientifically designed training solution with these baseball training balls.
  • Gradual Progression: This baseball weighted ball set offers a variety of weights (100g/3.5oz, 150g/5.3oz, 225g/8oz, 340g/12oz, 450g/16oz, 565g/20oz). Weighted balls baseball pitching allows you to gradually progress your training and achieve optimal result.
  • Easy to Use, All Skill Levels: Rewire's weighted training balls are designed for everyone, from beginners to pros. No complex setup, just grab these weighted balls baseball set and throw for improved pitching velocity and mechanics.
Bestseller No. 2
GoSports Plyometric Weighted Balls for Baseball & Softball Training 6 Pack - Variable Weight Balls to Improve Power and Mechanics - Pro Set
  • PRO PLYO SET: PRO Set includes 6 weighted balls of varying weights for dynamic strength and mobility training (100g, 150g, 200g, 250g, 350g, 450g)
  • IMPROVE STRENGTH AND RANGE OF MOTION: Weighted balls can help condition strength and enhance range of motion to improve your skills on the field
  • PITCHING TRAINING: Plyometrics drills can help promote efficient throwing mechanics and improve throwing velocity
  • GREAT FOR ALL SKILL LEVELS: Perfect for beginners and experienced players looking to build strength while improving throwing mechanics to take their game to the next level
  • HEAVY-DUTY RUBBER SHELL: Soft yet durable rubber casing is built to withstand countless practice sessions whether you are on the field or in the gym
SaleBestseller No. 3
SunNordic 6/9 Pack Seams Plyometric Weighted Baseball Set (3.5-16/35/53/70 oz) - Variable Weight Plyo Baseballs for Improved Power & Pitching Training - for All Skill Levels
  • 【WHAT YOU GET】Plyometric weighted baseballs set comes with 6 x training baseballs of varying weights (3.5, 5.3, 7, 12, 14, 16 oz), 1 x carry bag and 1 x 25 LB baseball training band. Different weighted balls help regulate strength and improve speed to improve your skills on the court.
  • 【IMPROVING PITCHING & PROFESSIONAL SKILLS】Different levels of weighted baseball are perfect for beginners and experienced players to choose from, and through throwing, you can exercise stronger arms and train your arms to pitching faster. And heavy baseball helps to warm up faster, train more effective pitching techniques, and improve your professional skills.
  • 【QUALITY MATERIAL DESIGN】This plyo baseballs are filled with iron sand inside, providing players with sufficient weight, while the inflatable soft shell is made of PVC material, surface seams make the ball softer, more slip resistant, and realistic, capable of withstanding high-intensity pitching training and can be used anytime in any weather condition.
  • 【BASEBALL STRENGTH TRAINING BAND】The weighted baseball set includes 25 lb baseball training resistance band suitable for high school level. Weighted baseball and baseball band combination training are very helpful in improving speed and performance, enhancing arm strength, and improving pitching stability and flexibility.
  • 【EASY CARRYING & STORAGE】The plyo ball baseball set comes with a carrying bag made of canvas for easy carrying and storage. You can easily organize and receive pitching/throwing speed training for baseball and softball anytime, anywhere!
Bestseller No. 4
SunNordic 6/9 Pack Seams Plyometric Weighted Baseball Set (3.5-16/35/53/70 oz) - Variable Weight Plyo Baseballs for Improved Power & Pitching Training - for All Skill Levels
  • 【WHAT YOU GET】Plyometric weighted baseballs set comes with 6 x training baseballs of varying weights (3.5, 5.3, 7, 12, 14, 16 oz), 1 x carry bag and 1 x 15 LB baseball training band. Different weighted balls help regulate strength and improve speed to improve your skills on the court.
  • 【IMPROVING PITCHING & PROFESSIONAL SKILLS】Different levels of weighted baseball are perfect for beginners and experienced players to choose from, and through throwing, you can exercise stronger arms and train your arms to pitching faster. And heavy baseball helps to warm up faster, train more effective pitching techniques, and improve your professional skills.
  • 【QUALITY MATERIAL DESIGN】This plyo baseballs are filled with iron sand inside, providing players with sufficient weight, while the inflatable soft shell is made of PVC material, surface seams make the ball softer, more slip resistant, and realistic, capable of withstanding high-intensity pitching training and can be used anytime in any weather condition.
  • 【BASEBALL STRENGTH TRAINING BAND】The weighted baseball set includes 15 lb baseball training resistance band suitable for beginner level. Weighted baseball and baseball band combination training are very helpful in improving speed and performance, enhancing arm strength, and improving pitching stability and flexibility.
  • 【EASY CARRYING & STORAGE】The plyo ball baseball set comes with a carrying bag made of canvas for easy carrying and storage. You can easily organize and receive pitching/throwing speed training for baseball and softball anytime, anywhere!
Bestseller No. 5
Marv Balls - Velo Set (Soft Shell Plyo Baseball) Original Plyo with Seams Velocity Development Set - 6 Weighted Baseballs
  • Set Includes: 3.5oz, 5oz, 7.5oz, 10oz, 1 LB, 2 LB, Carry Bag
  • Realistic Seams & Leather-Like Texture
  • Ability to Work on Multiple Pitches
  • Better Spin Efficiency and More Realistic Feel
  • Inflatable Soft Shell Plyo Material
Bestseller No. 6
Driveline Baseball PlyoCare Balls - Weighted Pitching Training Balls + Free 16-Week Program
  • TRAINING SET: Improve pitching mechanics and increase velocity with the complete set of nine weighted PlyoCare balls, along with a carrying case. Driveline offers sets and programs that work for all skill levels. Use the QR code on the box to access training materials.
  • IMPROVE PERFORMANCE & RECOVERY: Build a stronger arm by using a range of throwing weights. Overload balls help teach cleaner, more efficient throwing patterns; underload balls teach your arm to move faster. Strong arms hold their velocity for longer and recover more quickly.
  • DURABILITY: Driveline Plyocare Balls are engineered for 15,000 throws. Our durable shell is designed to outlast the competition. Our products include a 365-day manufacturer warranty on all Driveline Baseball equipment.
  • TRUSTED BY THOUSANDS OF PROS: Driveline is the premier data-driven baseball player development organization in the world, and pioneer of the Plyo Ball market. Trusted by thousands of professionals, 40+ All-Stars, and multiple MVP and Cy Young winners. Featured by ESPN, MLB, New York Times, and more.
  • TRAINING GUIDE: Our set includes a free 16-week pitching program that allows athletes to target weaknesses and address seasonal or arm health-related variations in their programming with more precision for better results.
SaleBestseller No. 7
Grady's Pitching School Soft Shell Weighted Ball Set 32, 21, 14, 7, 5, and 3.5oz-Pitching/Throwing Velocity Training for Baseball and Softball
  • SET OF 6 BALLS: The set comes with a 32, 21,14, 7, 5, and 3.5oz ball. Choose from no seams or seams on the 14, 7, 5, and 3.5oz ball.
  • DURABILITY TESTED: Each ball can withstand being thrown into a hard, flat surface.
  • INCREASE VELOCITY: Training is shown to improve arm speed and increase velocity when used in conjunction with an effective training program.
  • CARRYING CASE INCLUDED: Carrying case included with each set.
  • EASILY INFLATABLE : Each ball contains an air nozzle to inflate as needed using a standard needle pump.
Bestseller No. 8
GoSports 2.8 inch Weighted Training Baseballs - Hitting & Pitching Training for All Skill Levels - Improve Power and Mechanics
  • WEIGHTED TRAINING BALLS: Set includes a 6 pack of 16oz training balls measuring 2.8 inches for baseball and softball training
  • GREAT FOR ALL SKILL LEVELS: Perfect for beginners and experienced players looking to build strength while improving hitting and throwing mechanics to take their game to the next level
  • COACH FAVORITE: Essential training tool for perfecting the fundamentals of batting and pitching to achieve ideal form and technique through instant feedback
  • HEAVY-DUTY RUBBER SHELL: Soft yet durable rubber casing is built to withstand countless hitting and practice sessions whether you are on the field or in the batting cage
  • IMPROVE STRENGTH & FOLLOW THROUGH: Throw faster & hit harder on game day; Weighted balls force players to slow down and focus on proper form during pitching and batting practice; Limited flight design is great for backyard practice

The Ultimate Buying Guide for Baseball Plyo Balls

Plyometric balls, often called plyo balls, are fantastic tools for baseball players. They help you build arm strength, increase throwing velocity, and improve overall core power. Choosing the right set can make a big difference in your training. This guide will help you select the best plyo balls for your needs.

Key Features to Look For

When shopping for baseball plyo balls, several features matter most. These features affect how you use the ball and how long it lasts.

  • Weight Options: Plyo balls come in various weights, usually measured in pounds (lbs) or kilograms (kg). Beginners should start with lighter balls, around 1-2 lbs. Advanced throwers might use 3-5 lbs balls for maximum resistance. Always select a range that lets you train safely.
  • Grip and Texture: A good plyo ball must have a surface you can grip securely, even when your hands are sweaty. Look for textured rubber or slightly tacky surfaces. Poor grip leads to dangerous throws and ineffective training.
  • Bounce Level: Some plyo balls are designed to have a slight bounce, while others are dead-weighted (they do not bounce). Non-bouncing balls are safer for wall drills because they don’t ricochet unexpectedly.
  • Durability Markings: Check if the manufacturer specifies the ball is safe for use against walls or hard surfaces. Not all plyo balls can handle repeated impact.

Important Materials in Plyo Ball Construction

The material used determines the ball’s feel, weight consistency, and lifespan.

Outer Shell

Most quality plyo balls use a durable, thick rubber or synthetic composite material for the outer shell. This material resists cracking and tearing from heavy use and repeated impacts. Softer rubber might feel better in the hand but wears out faster.

Inner Filling

The core filling is crucial for consistent weight. High-quality balls use dense, weighted materials evenly distributed throughout the center. This ensures the ball feels the same no matter how you hold it. Poorly filled balls might shift weight, leading to inaccurate throwing mechanics.

Factors That Improve or Reduce Quality

Quality isn’t just about the price tag. It’s about construction and intended use.

Factors Improving Quality

  • Seamless Construction: Balls without obvious seams often have a more uniform weight distribution and superior durability.
  • Weight Tolerance: Reputable brands offer balls with very low weight tolerance, meaning a 3 lb ball is exactly 3 lbs.
  • Weather Resistance: If you plan to train outdoors, materials resistant to sun and temperature changes last longer.

Factors Reducing Quality

  • Hollow Cores: Balls that are mostly hollow, except for a small weight inside, feel light and offer little resistance for true power training.
  • Cheap Plastic Shells: Thin plastic shells crack easily, especially when thrown hard against a wall or the ground.
  • Inconsistent Weight: If the weight feels uneven, the ball forces you to compensate while throwing, which damages your mechanics.

User Experience and Use Cases

How you plan to use the balls dictates the best choice. Think about where and how you train.

Throwing Against a Wall (Overload/Underload Training)

For intense wall drills, you need balls that can handle impact without bouncing wildly. Non-bouncing, heavy-duty rubber balls are best here. You usually use an overload ball (heavier than a baseball) and an underload ball (lighter than a baseball) in sequence to train your arm speed.

Rotational Power Drills

Plyo balls are excellent for core work. Players often use medium-weight balls (2-4 lbs) to practice rotational throwing motions without actually releasing the ball. This builds explosive rotational power needed for hitting and pitching.

Warm-up and Recovery

Lighter plyo balls (under 1 lb) can be used for gentle warm-ups to activate the shoulder muscles without strain. They help prepare the arm for throwing.


10 Frequently Asked Questions (FAQ) About Baseball Plyo Balls

Q: What is the main difference between a plyo ball and a medicine ball?

A: Plyo balls are generally smaller and specifically designed for throwing mechanics, mimicking the size and grip of a baseball. Medicine balls are usually larger and heavier, focusing more on general core strength.

Q: How heavy should my first set of plyo balls be?

A: If you are new to them, start with a set that includes 1 lb, 2 lb, and 3 lb balls. This allows you to safely introduce resistance.

Q: Can I use a regular medicine ball instead of a plyo ball?

A: You can, but it is less ideal. A medicine ball’s size makes it awkward to grip like a baseball, which can teach poor throwing habits.

Q: Are plyo balls safe for my arm?

A: Yes, when used correctly. Always follow a structured program, never throw them at maximum effort immediately, and stop if you feel sharp pain.

Q: Do I need balls that bounce for wall drills?

A: No. Most baseball-specific plyo training requires non-bouncing balls. Bouncing balls create unpredictable rebounds that stress your joints incorrectly.

Q: What is “overload” training?

A: Overload training means using a ball that is heavier than a standard baseball to build strength and reinforce a proper throwing path against resistance.

Q: What is “underload” training?

A: Underload training uses a ball lighter than a baseball to help you train your arm to move faster than normal, improving arm speed.

Q: How do I clean my rubber plyo balls?

A: Wipe them down with a damp cloth and mild soap. Avoid harsh chemicals, which can break down the rubber material over time.

Q: Should I throw the heaviest ball I can find?

A: Absolutely not. The heaviest ball should only be about 10% heavier than your body weight for core work, and for arm work, it should be slightly heavier than a baseball, not excessively heavy.

Q: Where should I store my plyo balls?

A: Store them indoors in a cool, dry place away from direct sunlight. Extreme heat can sometimes soften or degrade the rubber.