Door Knob Cover Lock

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/h7GaGbv3WzW
This is a detachable lock that fits over standard doorknobs with or without an existing lock. It includes only five pieces: A. Upper housing, B. Lower housing, C. 2 deadbolts, and D. The key. There are no fasteners of any type - No screws, no clips and no glue. Just drop in the deadbolts and you're ready to place the lock on the doorknob. The lock is simple, but not easy to pick. Great for low security situations.