Check Your Tire Size BEFORE You order to make sure this the right fit for your application. 3 inch Centered hub 5/8 inch Ball bearings (please check your existing hub Size for proper fit) – Fits most wheelbarrows and small lawn and garden equipment. Compatible Replacement Sizes include: 4.80/4.00-8 inch (15-16 diameter), 3.50/2.50-8 inch (13 diameter), and 4.00-6 inch (13 diameter) Has the same feel and handling of an air-filled tire, but the solid polyurethane will never go flat. Not for highway use. Features a contractor-grade load capacity of 500 pounds and a ribbed tread for easy maneuvering. Comes pre-mounted on a solid steel, white wheel for quick and easy installation.