This little gizmo has saved me from developing Carpel Tunnel syndrome. After 20 years of riding with one, I swear by the product. I’ve used a similar product called a “throttle rocker”, but that company was forced to change their design due to copyrighting infringements with the Crampbuster. The rocker slips over the grip and the angle can be controlled on the fly. It allows riders to rest their wrist on the tang of the Crampbuster. This allows a rider to open and close their hand and stretch their fingers, all the while keeping pressure on the throttle. Ingenius. I’ve got a herd of Ducks, and every one has a wrist rest on it. The Crampbuster is removable and reusable.