Injection-molded out of tough, glass-filled nylon and reinforced with a stainless steel rod, Berry's Gun Swings are a convenient and durable storage option. The .38 cal and .45 cal swings have a high-density rubber sleeve permanently mounted over the nylon. They will swing 180Adeg and can be mounted to any vertical surface.The measurement for the baseplate of the gun swings are 2.5" x 4".