1.12 packs nylon garage door roller, replace your old,noisy or broken sectional,track-style garage door parts rollers with our quiet and smooth nylon rollers for garage door
2.Garage door rollers are made of white nylon, softer and quieter than plastic or metal rollers; 11 balls bearing reduces rotational friction between roller and shaft, makes open and close the garage door quieter and smoother
3.The size of garage door rollers match most residential garage doors, easy to install, effectively extend the service life of garage door rollers over 100,00 operations
4.Package contains 12 pieces white garage door rollers, 4 inch stem nylon garage door replacement parts（Lubrication recommended, not included）
5. if you have any problems, we’ll help you as much as we could
