Swivel Plate Caster Load Rating 260 lb. Wheel Dia 6 In. Wheel Width 1-1/4 In. Overall Height 7-13/32 In. Wheel Material Thermoplastic Rubber Inside Bolt Hole Spacing 1-3/4 x 2-13/16 In. Outside Bolt Hole Spacing 1-3/4 x 3-1/16 In. Plate Type C Wheel Color Gray Core Material Polyolefin Raceway Double Ball Hardened Wheel Bearings Precision Ball Plate Size 2-1/2 x 3-5/8 In. Durometer 85 Shore A Core Color Gray Mounting Bolt Dia 5/16 In. Frame Material Steel