Swivel Caster with 5-1/2" x 1-1/2" Extra Soft Neoprene Wheel with Rounded Tread and Ball Bearings - 200 lb. Capacity - 2-1/2" x 3-5/8" Mounting Plate - Bolt Holes: 1-3/4" x 2-7/8" slotted to 1-3/4" x 3" - Uses 5/16" Mounting Hardware - 6-7/8" Overall Height