LA PEKY PEMIUM The SPINFORM trainer is covered in real leather and feels exactly like a real 9 Inch" Baseball. Patent pending. -See, practice and master the right swings! - Provides instant feedback! - Skills translate directly to game situations.
Great for all distances and speeds: complete throwing drills! - Great for overhead throwing too! Strengthens your hand behind the ball at the moment of release, which helps maximize velocity! Promotes proper release from all arm slots! Real leather, with raised stitched seams! Used by many schools,