Enhance your sliding door and window systems with the practical nylon roller bearing pulley. The bearing is in a nylon coating, providing a smooth and . Ideal for both new installations and replacements, this pulley ensures reliable operation and performance in any setting. 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 -sturdy materials: constructed from nylon and steel, this pulley delivers durability and resistance to wear, ensuring a long servicing time for your sliding systems -Multipurpose functionality: ideal for use in doors, windows, drawers, and other hardware applications, this pulley offers versatile performance for various needs -Elegant design: boasting a sleek and minimalist design, this pulley enhances the aesthetic appeal of your space while providing reliable functionality -Compatible design: designed to fit most standard door and window tracks, this pulley ensures compatibility and ease of use, making it a practical choice for any environment -Effortless installation: lightweight and easy to handle, this pulley can be quickly installed and replaced, providing a convenient solution for maintaining your sliding mechanisms Package list: 4 and window track pulleys