Plate Caster Kit Load Rating 150 lb. Wheel Dia 3 In. Wheel Width 1-1/8 In. Overall Height 3-9/16 In. Wheel Material Polypropylene Inside Bolt Hole Spacing 15/16 x 2-1/8 In. Outside Bolt Hole Spacing 15/16 x 2-1/8 In. Plate Type D Wheel Color Black Core Material Polypropylene Raceway Single Ball Wheel Bearings Plain Bore Plate Size 1-15/16 x 2-5/8 In. Includes (2) Rigid (1) Swivel (1) Swivel with Brake Hardware Durometer 65 Shore D Core Color Black Mounting Bolt Dia 1/4 In.