Our olive equipped track will help your door stay on its axis during the manual opening and closing movement or the motorization of sliding doors thanks to the "slim" nylon rollers mounted on the axis that can be rolled up Lifts and allows your door< /p> Structure composition: inner body and nylon tread for a smooth turn. Nylon is a strong material that resists shocks and abrasion, as well as low and high temperatures. It is also resistant to chemical agents. Excellent replacement for wheels when they are worn or broken. Used for electric doors, sliding doors, etc. Our olive nylon track is made of heavy duty steel to ensure indoor and outdoor use. 2 nylon wheels as sliding door tracks (2 pcs) | Size: 27x35 | Material: Nylon | Applications: Sliding Door Tracks, Electric Gates, Sliding Rollers, Garage, Sliding Doors, Sliding Door Wheels, Conveyor Belt or Conveyor Rollers, Transport/Carrying Wheels, Anti-Friction Bearings | Applications: Industrial and General