chairpartsonline 2" Standard Replacement Furniture Casters w/Square Mounting Plate - 1" x 1" Screw Holes (Set of 5) - S3420 2" (50mm) wheel size - Standard hard plastic nylon wheels - Black Mounting plate measures 1.5" x 1.5" overall Mounting screw hole spacing on plate is 1" x 1" with holes that are 0.20" / (5mm) wide (mounting hardware not included) Overall distance from floor to top of mounting plate is approximately 2.57" Set of 5 Casters