Develop a True One-Handed shot with perfect rotation. Stop your Off-Hand wrist & thumb from rotating and being involved in your shot. Comfortable to wear. Made of Neoprene. Helps grip of basketball with off-hand. Develop a True One-Handed shot with perfect rotation. The Wrap Strap is one of the rare aids where you become a more consistent shooter the second you put it on. Guaranteed!! The Wrap Strap attaches to your non-dominant arm/thumb and prevents it from being involved in your shot, or where you have rotation of wrist/thumb. The product is designed to keep your thumb and wrist "Quiet" on your shot, or keeping them from internally rotating on your shot.