Pearl Uni-Lock Hi Hat Holder CLH-930The CLH 930 Uni Lock Closed Hi Hat Boom Arm mounts a pair of cymbals in practically any location around the drum kit. Useful for standard closed hi hat cymbals or creative cymbal stacking, its simple spring action mounting system allows you to choose the amount of "wash" in your mounted cymbals with an easy turn of the top washer. Its Uni Lock tilter gives a nearly limitless option for angle adjustment, while the solid Hideaway Boom Arm allows for