... flow rate3. polyurethane tires with the benefit of never going flat 4.Many types and varieties, it's also economy and ... , acid.We promise to supply you with high quality solid wheels,and aslo OEM service for different colors PU Foam Wheel ... ",10'',12'',13'',14'',15'',16'',18'',20'',24'',26'' Flat free wheelbarrow tyres 13"x3.25-8"