We are producing solid wheel, with plastic or iron rim, ball/roller bearing, hub ... and hole according to customer's need. We are producing solid wheel, with plastic or iron rim, ball/roller bearing, hub ... .50-6, 3.00-4.4.10/3.50-4, 3.50-5, 3.50-6, 3.00-8, 3.25/3.00-8, 3.50-8, 4 ...