Usage Tips:Features:Premium Materials: All components of the kit are made from durable, premium materials, ensuring long-lasting performance and reliability.Cost-Effective Solution: Instead of replacing the entire garage door opener, this gear kit allows you to simply the worn-out gears, providing a cost-effective solution to extend the lifespan of your garage door opener.Compatible Models: for Liftmaster, Chamberlain, Craftsman, Sears, Master Mechanic, Wayne Dalton chain drive units. Compatible with 2245, 2255, 2265, PD210, PD212, PD610, PD612K, 1200 Series, 1240, 1245, 1246, 1250, 1255, 1256, 1260, 1265, and more. Not all models are listed.Easy Installation: This kit is designed for user-friendly installation, allowing homeowners to the chain drive gears themselves without the need for professional assistance.Complete Kit Includes: Helical gear and top hat assembly, worm gear, wear bushings, grease, and hardware needed to the chain drive gears. Our chain drive gear and sprocket kit is a complete chain drive gear and sprocket .Specifications:Item Name: Garage Door Opener Gear KitMain Material: Plastic, MetalColor: SilverPackage Information:Package Size: 15*10.7*6.8cm5.91*4.21*2.68inchPackage Weight: 500g1.1lbPackage List:1 * Garage Door Opener Gear Kit