The Business Time Doorstop

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4607131.

For those who don't have a lock on their bedroom door, but do have young kids that like to barge into a room without knocking.

It's a large and strong doorstop with an aggressive grip on carpet, suitable for keeping doors closed that are 15mm or more off the ground.

NOTE: If you don't have at least 15mm of space under your door, you might lock your self into the room and damage the door/carpet/doorstop in order to remove the doorstop. Remix the doorstop to make the small step slightly lower if needed.