The Zak Tool #12C pro grip handcuff key is made to last a lifetime. This black carbon fiber handcuff key features a stainless steel unlocking bit and is 4.25" long. The ergonomic grip makes unlocking cuffs a breeze. This key will open standard Smith & Wesson, Peerless, ASP, Hiatt, CTS, Chicago handcuffs and more. Zak Tool offers a lifetime warranty on all their handcuff keys.