... 50-4" Detailed technical information:1.Tire Material = Solid Polyurethane2,Rim Type = plastic rim with roller bearings3,Rim ... you with high quality solid wheels,and aslo OEM service for different colors PU Foam Wheel for any sizeIf you are ... are sincerely looking forward to be your supplier.Size for sale: 6'',8'',8.7",10'',12'',13 ... 14'',15'',16'',18'',20'',24'',26'' solid tires 10x3.50-4 for hand truck