Utilizing the infinite angle adjustability of Pearl's GyroLock tilter, the CH1030C Cymbal Boom features the unique positioning reach of Pearl's Boomerang arched mounting arm. This exclusive 12mm curved arm creates totally unique set-up function and inspiring visuals. Its 12.5mm knurled shaft interacts with other Pearl Boomerang accessories that make previously unattainable cymbal configurations possible. The WingLoc quick-release cymbal nut delivers fast, easy cymbal changes, and its 7/8" base docks into most mounting clamps and auxiliary ports.