These wall mount door stops are constructed of zinc alloy (cast Zamak) and come in a chrome plated finish. These door stops feature a 2 inch projection and a black rubber tip. They are designed for use with all swinging doors and have 1-5/8 inch mounting hole centers. Door stops like these are designed to prevent damages from hard closing doors to adjacent walls and furnishings, in addition to the door's own knob or lever hardware. Wall-mounted door stops like these are easy to install and are used by many. Tamper resistant T-27 Torx security fasteners for installation of all components. These fasteners feature tamper-resistant 6-lobe security drives with center pins.