These parts fit on the wood tom or snare drum hoops, accept the standard tension rods. Classic retro look. These mini claw hooks are NOT for bass drum hoops instead for 6 - 6.5mm thick (1/4 inch) claw style style wood tom and snare drum hoops. Try our bd14 hoops May not fit some wood hoops, sometimes extra hoop sanding may be needed. Nylon tension rod washers are reccomended for smooth tuning with these little claws.