penumatic wheel 8"x2.50-4, 10"x3.00-4, 10"x3.50-4, 12"x3.50-6, 14"x3.50-8, 16"x4.00-8, 15"x6.00-6, 16"x6.50-8 and so on. penumatic wheel 8"x2.50-4, 10"x3.00-4, 10"x3.50-4, 12"x3.50-6, 14"x3.50-8, 16"x4.00-8, 15"x6.00-6, 16"x6.50-8 and so on. Gardem cart wheel