This Plyo Ball Set is designed for movement preparation, increase velocity, & for limited space-indoor/outdoor use. Our total arm care program is designed to build strength & velocity. Perfect for warm-up, progressive hitting drills & training. This plyometric set benefits arm speed, arm strength, recovery, and much more! Includes (6) Balls: 3.5 oz, 5.5 oz, 8 oz, 11 oz, 16 oz, 32 oz (2 lbs.) and Free Carry Bag! About this itemImprove pitching mechanics – heavier balls help teach a cleaner, more efficient arm action. Throw harder – build a stronger arm across a range of throwing weights. Learn to move fast. Recover better – strong arms hold their velocity and recover quickly. Perfect for use in post-throw recovery protocols. Warm up faster – shorten the time to get hot. Link to Weighted Ball Program: https://secureservercdn.net/198.71.233.86/c3n.d4d.myftpupload.com/wp-content/uploads/2021/10/TCB-Weighted-Ball-Program-1.docx Warning do not overexert yourself! Stop exercising if you experience pain or tightness!