Multipurpose Functionality: Designed for a variety of doors, these nylon garage door rollers are suitable for residential, commercial, sectional overhead, side-hinged, barn, and warehouse doors, offering versatile use and broad compatibility. Enhanced Durability: Constructed from nylon and carbon steel, these rollers resist wear, bending, and rust. They support heavy doors effectively, ensuring reliable performance in demanding environments. Specific Dimensions: This pack includes six black garage door rollers compatible with most 2-inch tracks. Each roller measures 46 mm in diameter and 120 mm in length, with a rod diameter of 11 mm and a rod length of 178 mm, ensuring compatibility with standard setups. Quiet Operation: These garage door rollers feature a double-sealed design with 8 ball bearings, minimizing operational noise and ensuring smooth, low-friction movement. The reinforced 6200ZZ bearing seals help keep out dust and debris for consistent performance. Installation Note: Prior to purchase, verify the dimensions of these rollers to ensure compatibility with your garage door system. This helps avoid mismatches and ensures proper installation. Dimensions: 46 x 120 mm Color: Black Material: Nylon + Metal Package Contents: 6 x Garage Door Rollers Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual product. Measurement tolerance is ±1–3 mm.