... " Detailed technical information:1,Tire Material = Solid Polyurethane2,Rim Type = plastic rim with roller bearings3,Rim Diameter = 100 mm4,Outside Diameter ... and advantages:1. polyurethane tires Widely used on wheelbarrow, Lawnmower ,hand truck, and trolley2. abrasion resistance, corrosion resistance and higher flow rate3 ... '',20'',24'',26'' pu foam tires 10x3.50-4 for hand truck