... to18 inch 2.Puncture proof natural rubber 3.Manufacturer in China 4.DOT,CCC,ISO,INMETRO,SONCAP 1, ... sizes for choose, such as: 2.50-4, 3.00-4, 3.50-4, 3.50-7. 2.50-6, 2.50-7 ... , 3.00-8, 4.00-6, 3.25-8, 4.50-8, 4.00-8 ... . 3.50-6, 6.50-8, 5.00-6 and so ... products according to customer’s requirement and demand. rubber contact wheels