Dual Wheel Rigid Caster Load Rating 820 lb. Wheel Width 2 In. Wheel Dia 6 In. Mounting Type Plate Inside Bolt Hole Spacing 2-7/16 x 4-15/16 In. Outside Bolt Hole Spacing 3-3/8 x 5-1/4 In. Durometer 70 Shore A Overall Height 7-3/4 In. Plate Size 4-1/2 x 6-1/2 In. Mounting Bolt Dia 1/2 In. Frame Material Steel Wheel Color Black Wheel Material Rubber Caster Type Rigid Core Color Red Core Material Cast Iron Roller Wheel Bearings Frame Finish Red Enamel Plate Type A