The Zak Tool #11P is constructed of a high strength carbon fiber body with a heat treated stainless steel bit & swivel mechanism. This handcuff key is made to last a lifetime. This handcuff key will open standard Smith & Wesson, Peerless, ASP, Hiatt, CTS, Chicago handcuffs and more. The key is 4" long and is textured for an easy grip. Zak Tool offers a lifetime warranty on all their handcuff keys.