The ASP AutoKey Handcuff Key allows an officer to properly orient its release in the hand by feel alone for smooth and user friendly use. This ASP AutoKey Handcuff Key with BackSet features BackSet which allows you to rub the tip back and forth over the surface of the cuff. The protruding shaft will fall into the keyhole. Hung on a keyring or carried in the pocket, the ASP AutoKey Stainless Steel Handcuff Key is ergonomic and smooth with a simple push button that releases the back set for quick use.