Wheelbarrow Tire, Ribbed Tread, Outside Dia. 16 in, Tire Material Foam, Rubber, Tire Rim Dia. 8 in, Tire Width 3 3/4 in, Tire Thickness 4 in, Fits Universal 6 in Ball Bearing HubDesigned to provide positive steering on hard-packed surfaces., these tires feature solid polyurethane construction to avoid flats. The universal fit offers easy installation on any wheelbarrow. Lightweight tires have 8" wheel, 16" dia. overall.