Product DescriptionMaterial: PP + steelColor: Yellow + SilverWheel Size: Approx.50 x 70mm / 1.97 x 2.76 "(Dia x H)Total height: about 107mmScrew type: M12Package include: 2 x guide wheels1. Structure composed of: inner body and nylon tread for smooth rotation. Nylon is a robust material that is resistant to impact and abrasion, but also to low and high temperatures. It is also resistant to chemical agents. Excellent replacement for wheels when worn or broken. Use for electric door, sliding door, etc.2. Our nylon olive guide is constructed of heavy-duty steel for indoor and outdoor use.3. 2 Nylon wheels as sliding door guide (2 units) Size: 40 x 60 Material: steel + nylon | Uses: Sliding Door Guide Sleeve, Electric Door, Sliding Rollers, Garage, Sliding Doors, Sliding Door Wheels, Conveyor Belt or Conveyor Roller, Pallet Truck / Pallet Wheels, Used Roller Parts Applications: Industrial and General