... or bulk we can supply all kind of 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 ... 5, 12''x3.50-6 , 8)13inch : 13''x3.00-8, 13''x3.25-8, 13''x4.00-6, 13''x5 ... : 16''x4.00-8, 16''x4.50-8, 16''x6.50-8, 16''x4.80-8, 16''x7.50-8, 12)18inch : 18 ... ''x8.50-8, 13)20inch ...