The Tama-MCB45EN Boom Arm is designed to work in combination with either a ratchet arm assembly or the Tama-MC66 Universal clamp. Use the MCB45EN to add an additional cymbal onto your existing drum setup, without taking up any more floor space. The MCB45EN features both Quick-set tilters and Cymbal-mates, to make life easier when setting up and tearing down your kit. The boom length measures 450mm and is 12mm in diameter. Get this, and other Tama hardware from the Drum Center of Portsmouth.