1. Damping BufferThe sliding door pulley is equipped with a damping buffer for smooth and quiet operation. Say goodbye to noisy sliding doors and enjoy a peaceful environment. 2. MaterialsMade from quality materials, this sliding door pulley is durable and longlasting. 3. Strong and StableConstructed with thickened steel plate, this pulley withstands pressure and avoids deformation. It's built to last and can handle heavy sliding doors with ease. 4. Elastic MovementThe pulley moves up and down elastically thanks to the spring mechanism. 5. AntiWear DesignThe nylon material wheel is designed to reduce friction and wear. 6. SpecificationsProduct Name: Pulleys; Material: Steel, Nylon; Color: As shown in the picture; Size: 84 x 78 mm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin