5ive Star Gear 5662000 Fifty-Cent Covert Knife Innovative escape knife blade concealed inside a U.S. Fifty-cent coin Features circular blade made of superior quality Japanese steel Can be used to cut cord, rope, duct tape, plastic zip-ties, and other non-metallic materials, increasing the odds of Escaping unlawful captivity A potential life-saving tool for undercover operatives and even civilians traveling in hostile regions Can be Hidden among regular coins to become virtually undetectable