The CuffMate is a versatile miniature light with an integrated handcuff key. It features a swiveling key ring connector; double-lock pin; momentary "squeeze" switch. It"s made from indestructible fiberglass reinforced polymer body and alloy steel key and double-lock pin. The lamp is a super-bright (10,000 millicandelas), 100,000-hour lifetime, high-intensity Light Emitting Diode (LED). The device is powered by two replaceable CR 2016 lithium batteries (included).