Chrome-plated zinc and black plastic. Stainless steel stem and lock nut. Supplied with 2 keys and flexible plastic strike plate. Offset adjustable cam bar Installs in 2'' diameter hole. Face plate: 2 1/2'' x 2 1/2''. For doors 1/4''--1 1/8'' thick. Latch Bar Adjustment: 3/8" to 3"