Eliminate the guesswork.
The SpinDr, patent-pending, gives pitchers of all ages immediate visual feedback of their spins with a training tool engineered to feel and spin exactly like a full softball.
The 7oz and 10oz SpinDr are for all ages 12u+ and are used for different purposes. 10oz: The 10oz SpinDr is for all ages 12u+. The 10oz ha
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Use the spin Dr for my pitching lessons and absolutely love it!! Helps my girls moving up to 12U get use to the ball size and adds a little bit of weight to help increase speed!