Pearl ICON Expandable Pipe Clamp PCL-100The ICON PCL 100 Expandable Pipe Clamp features adjustable jaws to mount components and accessories to all ICON 1. 5" rack support pipes. The expandable jaw on the Pearl's Icon Expandable Pipe Accessory Clamp adjusts to accommodate pipe diameters of 1 2" 1". It creates more room on the main Icon Rail by adding additional mounting points on the rack; attaching to the top of our 1. 5" round support pipes securely at two points. Cymbal arms and tom