A pair of highly visible locks keyed alike that are suitable for the rear door and near side sliding door. They add further security to the van to guard against thieves capable of defeating the factory fitted locks. The Bulldog Vandoor lock is: Simple to fit with no loose parts. Can be locked without the use of the key. Drill and pick resistant lock. Case hardened steel. Highly effective deterrent . Avoid costly repairs for locks and bodywork. "As used on fleet vehicles by major utilities"