This hook and bumper is constructed of zinc alloy (cast Zamak) and comes in a chrome plated finish. It features a single hook and a black rubber bumper on its tip. This hook and bumper installs with two fasteners through the diamond shaped mounting base, and its rubber tip can be replace with Sentry Supply part 650-6866. The T-27 Torx security fasteners included with this item feature tamper-resistant 6-lobe security drives with center pins.