... weight,acid and base resistant Pu foamed wheel 12x3.50-5"Detailed technical information:1,Tire Material = Solid Polyurethane2,Rim Type ... the customersWe promise to supply you with high quality solid wheels,and aslo OEM service for different colors PU Foam Wheel ... sale: 6'',8'',8.7",10'',12'',13'',14'',15'',16'',18'',20'',24'',26'' pu foam wheels 12x3.50-5 for hand truck ...