The all-new Gorilla 16 inch pneumatic wheelbarrow tire features heavy-duty ball bearings and 5/8 inch axle bore making it an ideal replacement wheel for most wheelbarrows. The universal adapter kit allows you to change the bore size of the bushing and use these tires with any make or model requiring a 14.5 inch tire or larger. Perfect replacement wheelbarrow tire. Oil-impregnated metal bushings 16 in. Dia wheelbarrow tire 5/8 in. bore size Replacement tire for standard wheelbarrows Includes universal adapter kit 5.5 in. centered hub