Quality Tire/Wheel Skates For Storing?

[Chatam/Marauder]

Has anyone used these before to store & move around a vehicle in the garage? What are some good brands out there right now too? Also, do they help in keeping the tires from getting flat spots too?

[fastblackmerc]

I use the Harbor Freight ones on my '66 Corvair as my MM is a DD.

These are the way to go if you have unlimited funds....
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=946 82

If fundsarelow get these:
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=389 59