1.2 Inch Nylon Garage Door Roller — 13Ball Bearings, 4 Inch Stem — Pack of 10 Key benefits Smooth, lowfriction operation: 1.2 inch nylon wheel with 13ball bearing design provides consistent, easy rolling for garage doors, reducing strain on the opener. Quieter performance: Nylon construction minimizes vibration and noise compared with metal rollers, making door cycles noticeably quieter. Reliable for residential and light commercial use: Designed to work with standard 7foot / 4panel doors and doors operated by automatic openers. What this product does for you Improves door movement so the garage door opens and closes smoothly and with less effort. Reduces wear and tear on tracks and openers by lowering friction and vibration. Offers a complete set of 10 rollers to multiple rollers at once for balanced performance. Specifications Wheel diameter: 1.2 inches Bearing: 13 ball bearings Stem length: 4 inch stem Material: Nylon wheel with metal stem and bearing assembly Quantity: 10 rollers (10pack) Compatibility: Suitable for 7' (7foot) or 4panel residential doors and light commercial garage doors, especially when used with an automatic opener Practical use scenarios worn or noisy rollers on a 7foot, 4panel residential garage door to restore smooth, quiet operation. Upgrade older metal rollers to reduce noise and vibration for an attached garage with living space above or adjacent. Install on light commercial doors in small shops or storage facilities where quieter, smoother door cycles improve daily operation. Notes Sold as a 10pack to facilitate replacing multiple rollers for consistent performance across the door.