I have been working to renovate my garage to build out an office area. The insulated doors that i purchased had the double hole for the door knob and the dead bolt lock. In my case I do not need the deadbolt but don't want to leave it as an open hole. I found other designs for this purposed on printables but they used more plastic and took longer to print. I created this to fit snugly into the hole but be easily removable. This should not be used in an area where security matters.