Tuochi Hardware 9401 1-5/8-Inch Office Chair Caster, Twin Wheel, 1-1/2-Inch Sq. Plate, 40-lb Load Capacity, 2-Pack Table Turning Mechanism  (Furniture Accessories, Stainless Steel)

1-5/8-inch diameter twin wheel black plastic swivel caster with plate mount 1-1/2-inch x 1-1/2-inch plate with 2-1/4-inch clearance height 40-lb load capacity per caster Twin wheels allow for more surface area in contact with the floor and move in opposite directions to minimize carpet fiber twisting - commonly found on RTA furniture, office chairs and entertainment centers Includes 2 casters