This E900 hardware bag is designed for one-piece wood garage doors using a two-spring setup. The kit includes W-hooks, spring anchor chain, spring anchor plates, a lock ferrule, door handle, slide lock, and an assortment of bolts, screws, and other installation hardware. Depending on the application, C-hooks or W-hooks may be used. A convenient replacement hardware kit for servicing or completing an E900 one-piece garage door system.