The Door Opener can be used by those in a wheelchair to open most doors without the need of assistance, or the necessity of having to back up as they are opening a door. This is especially important with maneuvering in a small hallway. Lightweight, aluminum channel only weighs 6.8 oz and can be used to unlock a dead bolt or door knob locks. The coated hook is non-skid and easily grips a round door knob, allowing you to turn it and pull open. Length is 23” long