Meet the Spinform Softball Trainer: a pitching and throwing spin trainer that helps you master your throws by giving you instant feedback. It is made of real leather with raised stitched seams to give you a solid grip. It has flattened sides, so you can see the orientation of the spin.
More gadgets like this ➡️ : here
This spin trainer helps you learn how to create and identify spin to make adjustments. You can find out more about it here.
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