The UniLock Arm & Leg Cymbal adapter (CHA70) is a multi-positional cymbal arm that creates quick, easy cymbal expansion around the drum set. Combining an extendable cymbal boom arm with two-way multi-positioning clamp, the CHA70 attaches to existing knurled rods around the kit from 8mm to 12mm. This makes adding cymbals to floor tom legs, L-Arms, and cymbal boom arms totally possible, expanding your set-up without additional stands. The boom arms gearless Uni-lock tilter adjusts to practically any angle, and the forward/aft and side-to-side adjustment of the mounting clamp makes difficult positioning around the drum set a breeze. Exceptional for working drummers who want to extend the use of existing gear in tight spaces.