Secure-A-Key Slip On, Double-locking release lever. Secure-A-Key, Slip On "The Original." Lucky Line takes special pride in the construction of this key carrier. Spring stainless steel won`t rust. Patented double-locking arm prevents accidental key loss. Keys cannot be removed without depressing the release lever. Preferred by law enforcement, slides through belt and holds up under heavy use. Supplied with 1-1/8" nickel plated tempered steel split ring. Measures 2" without split ring. Accepts up to 1-3/4" belts.