The Tama MCB30EN Boom Arm is designed to work in combination with either a ratchet arm assembly or the Tama MC66 Universal clamp. Use the MCB30EN to add an additional cymbal onto your existing drum setup, without taking up any more floor space. The MCB30EN features both Quick-set tilters and Cymbal-mates, to make life easier when setting up and tearing down your kit. The boom length measures 300mm (11 3/4").