Zak Tool #17 black concealable belt keeper handcuff key. This key was designed for secure placement within a typical double snap keeper strap. The inside rails of the key slide under one of the snaps while the opposite end rests around the remaining snap. Once in place, the keeper is closed and the key is secure and obscure. Constructed of heat treated stainless steel. 2 1/2" long. This key has been discontinued by Zak Tool. Available only while supply lasts.