ToolUSA 2 7/8" Diameter Replacement Swivel Casters/Wheels: KIT-TSC200S 2 7/8 Inch Diameter Wheel With A 2 1/2 Inch Overall Height 7/8 inch wheel thickness with two rows of ball bearings in hardened raceways Zinc plated finsh with a formed steel plate that is double welded for durablitiy 360 degree swivel makes moving any item easy and simple! Easy installation with four openings for screws