I have one of these pin striping tools with the wheel. I agree with Jan, it works but is not something you just pick up and use. You have to build a skill with it as it has it own quirks. My hand is not steady enough to use it without a guide. I did a wheel once with it and that came out pretty good. The wheel was easy, I put it in a truing stand. Locked the tool in a fixture with a swing arm. Spun the wheel and moved the swing arm over to the rim and in seconds had a perfect pin stripe. Wish I could move a bike frame around like that.
Ray Homiski
Elizabeth, NJ