... of polyurethane foamed material,with good quality and very competitive price.size from 6"-16" we can supply many kinds of ... as 2.50-4,2.50-8,3.00-4,3.00-8,3.25-8,3.50-4,4.00-6,4.00 ... -8,3.50-7,3.50-8,5.00-6,6.5-8, etcwe can ... for wheelbarrows ,hand trucks,lawn mowers and garden tractors. reasonable price rubber wheel-pu foam wheel