... :2.80/2.50-4We can produce all kinds rubber wheels the size is as the below: 6"*2 ... 3.00-4.3.00-5, 9*3.50-4, 4.10/3.50-4, 3.50-5, 3.50-6, 3.00-8, 3.25/3.00-8, 3 ... .25-8, 3 ... .50-5, 3.50-6, 3.50-7, 3 ... .All kinds tubeless pneumatic rubber wheels sach as 3.00-4, 9*3.50-4, 4.10/3.50-4, 4.00 ...