7mm L-Rod Ball Arm Tom Holder with ball adjustment for 360 degree positioning. 10.5 or 12.7mm 5-1/4” knurled mounting area with 6” long with 7/8” diameter down tube. L-Rod tom arm with 360 degree ball adjustment. Mount directly to rack clamps or any 2-way multi clamp. 7/8" diameter tube, 5-1/4" long mounting area. Includes memory lock.