Caster Set Caster Bearing Type Ball Bearing Caster Diameter 6 in 10 in Caster Height 7 1/4 in 10 in Caster Material Rubber Caster Type Pneumatic Caster Width 2 in 3 in Color Black Compatible with Grainger Part Number 498X54 35XR82 35XR83 498X56 499H46 499H48 498X57 499H45 499H47 498X55 499H49 Compatible with Manufacturer Model No 100 200 300 400 Includes (2) 10 in x 3 in rear wheels (2) 6 in x 2 in semi-pneumatic locking front casters Number of Casters 4