General description The Set of 4 Nylon Garage Door Rollers features sealed ball bearings designed to enhance the performance and longevity of your garage door. With a lubricating groove, these rollers ensure consistent lubrication over time, resulting in a quieter and smoother operation compared to standard rollers. Technical specifications Dimensions: 11.5 x 4.5 cm / 4.53 x 1.77 inch (LxDia) Weight: 534 g Operating temperature: as low as -45°C Compatibility and accessories Suitable for various types of garage doors including: Automatic garage doors Arch garage doors Solid wood garage doors Anti-pinch garage doors Cellular garage doors Engineering garage doors Remote garage doors Villa garage doors Usage Reduces garage noise with precision ball bearings Nylon rollers provide a quieter operation compared to original garage rollers