Caster, Caster Diameter 5 in, Caster Material TPR, Caster Type Solid, Caster Width 4 in, Color Black, Compatible with Grainger Part Number 32H891,32H892; 32H893, Compatible with Manufacturer Model No. TTTPRF42G, Finish Galvanized (hardware), Includes Screws, Washers, Number of Casters 2