Tricam Farm and Ranch FR2205 No-Flat Replacement Tire for Wheelbarrows, 13-Inch 13-Inch no-flat replacement tire for wheelbarrows Solid polyurethane design eliminates the chance of a flat tire; a great replacement for pneumatic air-filled tires Features heavy-duty ball bearings, grease fitting, 5/8-inch axle bore and includes a spacer kit for proper fitting Capable of holding 300 pounds and includes a universal adapter kit and Zerk grease fitting Comes with a 1-year limited warranty