Troys Gym Parts has been in business making aftermarket parts for Total Gym Equipment since 2008 and we are happy to offer our parts on Amazon. Our rollers are machined (Not Molded!!) from high strength plastic right hear in the USA. That means that your gym is going to be back up and running quickly and operating at peak efficiency. Each order comes with a three year warranty. These rollers fit Total Gym Models - 1700 club Note: If your roller has a recessed bearing on the small diameter side of the roller, then this roller is your replacement. Please check your rollers to confirm if it has a recessed bearing on the small diameter side and a flush bearing on the large diameter side. If your rollers meet this criteria then you need the 1700 Club rollers. Thanks for taking the time to view our product. If you have any questions, please let us know.