UZI Pocket Handcuff Key, metal pocket clip, works on most police quality handcuffs, UZI, Smith & Wesson, Peerless, Hiatt, American Handcuffs, ASP, Safariland, etc., 100% lifetime warranty. The UZI-KEY-211 Universal Pocket Key features a metal pocket clip and has a black finish. This model works on most police quality handcuffs. UZI combines advanced technical concepts with innovative designs to produce products used and trusted by the Army, Secret Service and Special Forces. Since its launch in the 1950s, UZI has become one of the world's most famous firearm brands and a 20th century icon.