All color available.
Any size is available.
With right hardness.
Can be durable.

Pu wheel size is 3.50-4  3.00-4 3.00-8 3.50-8 4.00-8 5.00-6. etc.

This product was selling to european countries.

It can fit for wheelbarrow.handtruck, air compresser machine etc

it has widely useage.