The 2 Pack Brass Plated Rigid Door Stop by Ultra Hardware helps your doorknob from swinging back and damaging your walls. Made with brass-plated metal, the stopper has a round rubber tip to stop your metal door knob from hitting your walls. Ideal for high-traffic areas in your home and office where doors are frequently opened and closed. No hardware needed! This household must-have measures 3" each. Comes packaged inside a hanging blister card. ,Ultra Hardware 2 Pack Brass Plated Rigid Door Stop.