... China. At present, we can supply pneuamtic wheels, semi-pneumatic wheels, tubeless wheels, solid rubebr wheels and so on. And we can supply many ... of rubber wheels, like 2.80/2.50-4, 6" x 2", 3.00-4, 4.10/3.50-4, 3.50-5, 3.50 ... -8 and so on.Main use: wheelbarrows, hand trucks, trolleys, carts, wagons, jockeys, casters, tricyles and so on.Main market: America ...