... PU esispastic wheel 4)tube and tubess wheel 5/natural rubber and butyl rubber innner tube for ... rubber wheels,eg 1)5inch : 5'X1.5', 2)6inch : 6'X2', 3)8inch : 8'X2.50-4, 4)9inchi : ... 9'X3.50-4, 5)10inch : 10'X3.50-4 ... 50-5, 7)12inch : 12'x3.50-5, 12'x3.50-6 , 8)13inch : 13'x3.00-8, 13'x3.25-8, ... 16'x4.00-8, 16'x4.50-8, 16'x6.50-8, 16'x4.80-8, 16'x7.50-8, 12)18inch : ...