The tire have a urethane outer skin and a foam core.
Tread grooved for better a grip.
The nylon hub, chrom coated, reinforced and ribbed, is extremely resistant and equipped with two hard plastic inserts in its center. The inserts are bored to 5mm.
Wheels NONA are delivered with ball bearings which can be assembled instead of the inserts. The interior ring of the bearing is reamed with 5mm.
Light wheels, which can support heavy loads without going flat, which does not remove from rim, and which turns perfectly round.