Check the listing for details. 12Pcs Garage Door Rollers 1.8Inchx7Inch Stem Quiet Sealed Rollers Silver. Condition: New. Listed at 41.89 USD. APPLICATION - Easy to install, for most sectional garage doors. - These nylon garage door rollers are built with precision bearings that provide effortless gliding along the tracks, allowing the door to open and close seamlessly.ABOUT THIS PRODUCTS - 1.8" (46mm) diameter replacement garage rollers fit 2" garage track replacement Use, on most residential doors. - Garage door rollers are an essential component of the garage door system. They are designed to reduce friction and allow the door to move up and down the tracks with ease - Garage door replacement rollers are made from durable nylon material, which offers high strength, flexibility, low friction, noise reduction and corrosion resistance.SPECIFICATION:Diameter: 1.