... meet the required thickness,my other factory can't do this. Although can do,the price is higher than us. No.4 ... -4 3.50-5 3.50-73.00-8 3.25-8 3.50-8 4.00-8 4.00-6 ... competitive prices,any further information,pls contact us ASAP. 3.25-8 PP rubber wheel tyre