Neewer Solid Iron Bass Drum Cowbell Mounting Bracket with Adjustable Clamp and Wing Screw, Fits up to 1.18"/3cm Drum Hoop Thickness (Black) Made of iron material, giving it a sturdy quality Firmly mount the cowbell on bass drum hoop Set up and disassemble quickly with wing screw Can easily clip to any bass drum hoop up to 1.18"/3cm thick Note: Cowbell NOT included