Katu BK-BB6505-28 Set of 4 Furniture Swivel Plate Caster with Brake for hardwood floors, Diameter 2 9/16" (65mm) Color Black 2 9/16" Diameter Rubber PU swivel Wheel (check image for more measuremnt) Load Rating 110 Lbs. each Caster, Set of 4 support 440 Lbs. Smooth rolling, hardwood floor safe Plate size 42mm (1 5/8") Pack of 4 casters: 2 Brake casters 2 No brake casters