The OEM LiftMaster Chamberlain Craftsman Garage Door Opener Arm Assembly Kit includes a smooth metal operator arm assembly designed for use with LiftMaster, Genie, Craftsman, and Chamberlain garage door openers. It features adjustable settings and comes with a manufacturer warranty of 1 year. This kit is compatible with various garage door opener models and is proudly made in the United States. Ideal for those looking to replace or upgrade their garage door opener arm assembly, this kit provides quality and reliability for your home improvement needs.