Caster Mounting Type Plate Load Rating Range 300 to 999 lb Load Rating 880 lb Wheel Dia 3 in Wheel Width 1 3/8 in Inside Bolt Hole Spacing 2-3/4 in x 2-3/4 in Wheel/Tread Material Nylon Caster Brake Type Leveling Pad Core Color Black Wheel Core Material Nylon Frame Finish Powder Coated Includes Mounting Hardware General Purpose Leveling Plate Caster Mounting Bolt Dia 7/16 in Outside Bolt Hole Spacing 2-3/4 in x 2-3/4 in Swivel Raceway Type Double Ball