Markwort Weighted Synthetic Covered Baseball, 9-Inch, 3-Ounce, Optic Yellow
- ...s increases your external rotation rapidly. The heavier the ball, the more the range of motion increases..
- HIGHLY DURABLE: Throw & pitch with every bit of strength, staying assured that the Play9 plyo-weighted balls are designed with 20% extra rubber for durability. Achieve the explosive strength building Plyometric exercises. Adding a medicine ball to plyometric moves increases the challenge and calorie burn and recruits fast-twitch muscle fibers, the ones important for strength and power..