1.non flat wheel 2.longer service life 3.high ... 10x3.50-4" Detailed technical information:1.Tire Material = Solid Polyurethane2,Rim Type = plastic rim with roller bearings3,Rim ... kg11,Load Capacity = 100 kgsApplication and advantages:1. polyurethane tires Widely used on wheelbarrow, Lawnmower ,hand truck, and trolley2. ... 12'',13'',14'',15'',16'',18'',20'',24'',26'' solid tires 10x3.50-4 for hand truck