Rubber Bed Frame Bracket Bumpers for Protecting Your Walls from Headboard Brackets, Set of 2 Designed for easy installation into Bolt-On style headboard brackets The hollow center of each bumper has just the right amount of "give" to protect your wall or headboard. Fits a 3/8" x 1-1/2" slot; use two bumpers per bed frame (one for each bracket, as pictured.) If you live in an apartment or condo, these can help keep your neighbors from hearing your frame bumping. Makes a great gift for the noisy neighbor. These bumpers are sold in pairs.