These are a pair of high quality rollers, made in the U.S.A.

The Overdrive Pro model comes with a resistance unit built into one of the roller drums. You can set it one way to have little resistance, like a classic roller. But for higher intensity workouts you can flip the drum and use the resistance unit, enabling you to get a tough workout without spinning out.

Here's a good review of them: http://www.bikeradar.com/...e-pro-rollers-48103/

The rollers have seen light use. No dents or damage to the drums. Bearings roll smoothly. A few chips to the paint on the main frame (see pictures). I'm just not using these much. PM me if you need more pics.

If you're in the Seattle/Vancouver B.C. area, we could arrange a pickup and save the shipping costs. For folks elsewhere, I estimate shipping will run about $60.