Contact Arm, Product Type Contact Arms, Belt Width 1/2 in, Wheel Material Rubber, Material Rubber, Compatible Tool Series Dynafile, Compatible Manufacturer Model Number 40320, 40321, 40324, 40326, 40330, Belt Length 18 in, Includes (2) Bearings, Shaft, Contact Wheel Assembly, Platen Pad Density Soft, Platen Pad Width 1/2 in, Wheel Diameter 5/8 in, Wheel Shape Wide, Wheel Width 3/8 in