The TAMA CA45EN is a long boom cymbal holder with a Quick-set Tilter. With a pipe diameter of 19.1mm, these cymbal holders can be connected to stands using either MC61 or MC62 clamps, or to a Power Tower rack using J24 clamp. Longer boom arm puts you closer to your cymbals for easier reach and placement. Quick-set tilter uses a large multi-disk mechanism that offers more strength, requires less effort, and allows more flexibility than standard toothless tilters. Features: 450mm (17 3/4") length Quick-set tilter Quick-set cymbal mate It's 17-3/4" in length.