Check the listing for details. Covert Boot Lace Handcuff Key - Escape and Evasion Cuff Key. Condition: New. Listed at 18.49 USD. This covert handcuff key was developed for an elite U.S. unit whose members are at high risk of being taken captive and require improved odds of escape.It was designed to have a near zero likelihood of detection, yet still have the capability to be rapidly accessed when required. This was achieved by engineering a unique covert hide-out key which is located seemingly far out-of-reach of a handcuffed captive.Discreetly attached to the tip of your bootlace, this handcuff key does not seem to be within any useful proximity while handcuffed behind your back. But just bend your knee up sharply and it puts it right into your hands! This works whether standing, sitting, or prone. Grasp the device, and then return your foot to its original position; as your foot descends the lace unties, leaving you with a tethered handcuff key in your hand.Fits on all standard boot laces (not included). A black rubber cover is included to protect and further conceal the key. Installs easily using just a regular pair of pliers (directions included). Constructed of blackened brass. Price is for 1 key Length : 3/4 inchWeight : 0.017 oz. U.S. Patent 9,523,216. Made in USA. Must be at least 18 to purchase. Please check your state and local laws before purchasing this item. It is the responsibility of the buyer to ascertain and obey all applicable local, state, and federal laws in regard to the possession, use, and sale of any item purchased from J & L Distribution (Mr. Defense).