Gibraltar SC-GCMAMC Chrome Multi Angle Multi ClampThe Gibraltar multi angle mounting clamp attaches securely to a drum rack, floor tom stand, or sturdy cymbal stand to position cymbal arms and auxiliary percussion anywhere around the kit. It fits tubes up to 1. 5" in diameter. A unique geared ratchet assembly gives the C clamp a full 360 degrees of motion to position even non booming stands at any angle parallel to the mount great for precision placements and tight setups. Adjustable Multi Clamp