Deadbolt Lock Security Enhancer 2-3/4" Backset

Since everyone is staying home, this little cover for your deadbolt will prevent anyone from opening it from the outside. The protrusions insert into the gap to hold it in place. The notch is for the bolt itself. If it's a loose fit, say more than 6mm, just jam something between the 2 'prongs'.
Lock pickers will be foiled, but so will anyone with a key so use common sense if you use this device.
Made for 2-3/4" backset, which is what most condominiums have. There is one for each thumbturn position. Horizontal thumbturn normally indicates bolted.
It can be edited and resaved here, if something doesn't quite fit
https://3dorchard.com/app/single/58ada3108bd9f40c54d40fbe/5e7255d5a21eb30b8bbae0e9

I didn't print one yet but no need to use a lot of infill.

What's up with the 3D model for the ThingiViewer?