The Yamaha JRCL500 Rack Clamp is a versatile drum clamp designed for use with cymbal attachments and tom holders. The compact and durable design of the clamp does not interfere with your setup but ensures your equipment will remain secured throughout your performance or session. Features Safely secures your toms or cymbals Discrete design does not interfere with your setup Includes and adapter for switchable diameters Ergonomic plastic wing nuts are easy to tighten Compact sturdy and durable design Specifications Diameter (With Adapter): 16.0mm Diameter (Without Adapter): 22.0mm