Check the listing for details. 2Set Slide Gate Guide Roller 2.8" Adjustable Nylon Roller, White. Condition: New. Listed at 36.23 USD. This sliding gate roller is a component used for sliding, positioning, and guiding various types of doors, suitable for doors in balconies, bedrooms, bathrooms, shops, industrial plants, and other occasions. It can ensure smooth opening and closing of the electric doors nylon-clamped sliding doors iron doors. Perfect for various applications, enhancing door efficiency and stability. and achieve precise positioning.SpecificationColor: WhiteMaterial:NylonTotal Length: 100 mm / 3.9 inchWheel Length: 70 mm / 2.8 inchOuter Diameter: 50 mm / 2 inchThread Size: M12Package List: 4Pcs Slide Gate Guide RollerAdvantageThe sliding door roller is made of nylon, which has good wear resistance, long service life, low replacement frequency and corrosion resistance.