<p>Used to disconnect garage door mechanism to allow opening garage door manually from the outside. Ideal for use on garages that do not have a access door. Allows garage door to be opened from the outside during power outage or operation failure.</p> <ul><li>Extension sleeve for doors up to two inches thick</li><br /><br /><li>Includes two keys</li><br /><br /><li>For exterior manual operation</li></ul>