... . light weight but high load capacity Solid polyurethane tire with steel rim 13"x3.25-8"Detailed technical ... information:1,Tire Material = Solid Polyurethane2,Rim Type = sprayed steel ... rate3. polyurethane tires with the benefit of never going flat 4.Many types and varieties, it's also ... '',14'',15'',16'',18'',20'',24'',26'' Flat free wheelbarrow tyres 13"x3.25-8"