The nylon-coated roller bearing pulley is designed to meet the demands of modern sliding door and window systems. Featuring a bearing, it offers smooth and efficient movement, reducing noise and wear. This versatile component is ideal for various applications, ensuring your sliding mechanisms operate seamlessly and efficiently. Features -Color:White -Material:Nylon and steel -Size:3.00X3.00X1.00cm/1.18X1.18X0.39in -Inner Hole Diameter: 8 mm -Outer Diameter: 30 mm -thickness: 10 mm -Robust construction: made from sturdy nylon and steel, this pulley ensures exceptional durability and longevity, making it a reliable choice for your sliding door and window applications -Wide range of uses: suitable for doors, windows, drawers, and various mechanical drives, this pulley offers versatile functionality for different hardware setups -Stylish appearance: featuring a simple and elegant design, this pulley seamlessly integrates with various decor styles, enhancing the overall look of your space -Universal compatibility: designed to fit most standard tracks, this pulley ensures a smooth and easy installation process, making it ideal for a variety of sliding systems -Quick installation: lightweight and portable, this pulley is easy to install and can be quickly replaced, providing a simple solution for maintaining your sliding mechanisms Package list: 4 and window track pulleys