Razorama

http://www.razorama.com/2greenwheelw1.html
Like those on the link, but the color does not matter.

Just get a pair of 100mm Inline (since that is all they are).


Durability of them will rely on the rating of hardness of the wheels.

Odds-top will last longer but provide a rough ride.
Low opinion not too much and a better grip but wear out faster.

Go to Big 5. Near the shoe section or camping section, you can see an area of action sports (mostly skateboards and other stuff). You'll find a set of wheels with bearings mounted there.

Big 5.