Plate Caster Kit, Compatible With 951167 Work Bench, 951168 Work Bench, 951169 Work Bench, 951170 Work Bench, Features 3 Month Warranty, Heavy Duty 3 in Caster, Includes (4) Casters, Outside Diameter 3 in, Overall Height 3-7/8 In., Product Type Casters, Package Quantity 4