Best Plyo Balls for Softball Training and Power
Answering your search: these plyo balls are ideal for softball players who want to build arm strength, speed, and throwing velocity. The best options below cover variable-weight sets, soft-shell options, and durable designs suitable for beginners through advanced players. Each pick targets a specific training need—whether you’re focusing on velocity, mechanics, or progressive resistance. The buyer types most served are practice-focused players, coaches/teams, and athletes integrating plyometrics into a broader strength routine.
Summary Table
| Product | Weight Range | Ideal For | Key Benefit |
|---|---|---|---|
| GoSports Pro Set | 100g–450g | Intermediate to advanced players | Varied weights for dynamic strength and mechanics |
| Plyo Soft Shell Set (Grady’s) | 32oz–3.5oz | Speed and velocity training | Durable, versatile weight progression |
| VeloU Weighted Baseballs | 3.5oz–20oz | Developing arm strength | High durability for many throws |
| GoSports 3.82 Inch Softballs | 16 oz each | All levels | Official softball size, builds power and mechanics |
| Retrora Set Of 6 Weighted Softball | 6oz–12oz | All skill levels | Clear progression with color-coded weights |
GoSports Pro Plyo Set: 6 Variable-Weight Balls

The GoSports Pro Set offers six weighted balls ranging from 100g to 450g. This progression supports improved pitching mechanics and throwing velocity through plyometric drills. Best for players seeking a structured, multi-weight routine to condition both strength and mobility.
Who it’s best for: players aiming to build a foundation in power development and range of motion before advancing to heavier loads. Why selected: the wide weight range supports gradual loading and technique-focused drills. Caution: lighter weights may not challenge veteran throwers, so integrate heavier balls into a well-planned program.
Plyo Soft Shell Weighted Ball Set

The Grady’s Pitching School Plyo Soft Shell Set includes six balls with weights like 32, 21, 14, 7, 5, and 3.5 oz. These soft-shell balls are designed to be durable and withstand repeated throws, offering a practical path to increase arm speed and overall velocity when used with a structured plan.
Who it’s best for: players focusing on velocity development and consistent mechanics with a straightforward progression. Why selected: the explicit weight progression mirrors common training schemes. Caution: some users may prefer lighter balls for early-season warmups to avoid excessive strain early in the training cycle.
VeloU Weighted Baseballs: 6-Ball Set

VeloU’s six-ball set spans weights from 3.5 oz to 20 oz, enabling a progressive approach to building arm strength and pitch velocity. The design emphasizes durability to endure thousands of throws, making it suitable for frequent practice sessions on the field or in training facilities.
Who it’s best for: players who want a wide resistance spectrum and a durable option for long-term use. Why selected: the broad weight range supports gradual progression and targeted strength gains. Caution: ensure proper warm-up and technique to minimize risk when incorporating the heaviest balls into a session.
GoSports 3.82″ Weighted Training Softballs (6 Pack)

This 6-pack uses official 3.82-inch softball balls, each weighted for training. Suitable for beginners to advanced players who want to focus on hitting and pitching mechanics while building power. The pack is described as a coach favorite for refining form with instant feedback.
Who it’s best for: players seeking a ready-to-use, standardized training tool for both batting and pitching drills. Why selected: balance of weight and standard softball size makes it versatile for mixed drills. Caution: heavier balls may require diligent supervision to protect younger players from overexertion.
Retrora Set Of 6 Weighted Softballs

Retrora’s set of six weighted softballs offers weights from 6 oz to 12 oz, with a convenient drawstring bag. The colors aid in quick weight identification during training, helping players track progression and maintain variety in drills.
Who it’s best for: teams or individuals pursuing a simple, color-coded progression for practice sessions. Why selected: clear weight ladder and storage convenience. Caution: ensure balls’ weight labels stay visible to prevent mixing up weights during a workout.
Buying Guide
What weight range should I choose?
Start with lighter weights (around 3.5–7 oz) to learn proper mechanics and gradually increase to heavier loads (up to 20 oz or more) as strength and technique improve. A multi-weight set is often best for progression across a season.
Which material and feel matter?
Durability matters for frequent practice. Soft-shell or PVC shells reduce impact stress, while iron sand cores provide steadier weight. Choose shells that balance feel and resilience for your training surface.
How should I structure a plyo-ball routine?
Incorporate plyometric drills that target throwing mechanics, arm speed, and rotational power. Alternate weighted-ball throws with mobility work, gradually increasing volume and intensity. Always include proper warm-up and cooldown.
Who benefits most from plyo-ball training?
Players seeking to boost velocity, improve throwing mechanics, orcondition arm strength benefit most. Coaches may use weighted balls for targeted drills within a broader strength program.
What are common risks or limitations?
Overuse can lead to strain if training volume is too high or weights are too heavy for a given athlete. Prioritize technique, rest days, and guidance from a coach when introducing heavier plyo balls.
FAQ
- What is a plyo ball and why use it for softball?
- How many weights should I have in a set?
- Is a soft-shell ball better than a hard-shelled one?
- Can I use plyo balls for both baseball and softball?
- How often should I train with plyo balls?
- Are there safety concerns with heavier weights?
A plyo ball is a weighted training ball used to build arm strength, throwing velocity, and mechanics through plyometric-style drills.
A 4–6 ball set with a progression from light to moderate weights is common for beginners to intermediates, with heavier options added for advanced training.
Soft-shell balls reduce impact stress and are durable for repeated throws, which can be beneficial for younger players or frequent practice sessions.
Yes, most plyo-ball sets target general throwing and pitching mechanics applicable to both sports, though sizes and weights may vary by sport.
Incorporate plyo-ball work 2–3 times per week within a broader conditioning schedule, ensuring adequate rest and technique-focused drills.
Heavier weights require proper warm-up and progressive loading. Avoid sudden increases in weight to prevent injuries.