Caster wheels for asphalt and rough concrete?

[mituzuna]

I need to replace the worn out 2in wheels on my mechanics creeper bed. What type of caster wheel material are durable and roll well on rough concrete and asphalt? Polyurethane or rubber caster wheels?

 

[Wrench97]

What brand creeper do you have?
I went through this for years under trucks in the yard or trailers against the dock, the Lisile plastic creepers is what worked best for me and I would order replacement casters right from them, The HF casters were the worst.