This is a customizable stand for precision screwdrivers. The thing makes it possible to position all your precision screwdrivers orderly and space efficiently. In order to lock the screwdrivers in the stand and store it lying down, you can print a customizable top section that is found here: http://www.thingiverse.com/thing:1044743. I find it quite convenient to store my screwdrivers as a package. I use a rubber band to keep the two parts together while in storage.