Magic book 00210. Digital files for manufacturing products on a laser machine (co2 or diode).
The inside has smooth walls with no protrusions, so dividers and inserts are easy to place.
Engraving and cutting take about 1 hour, depending on your machine. The graphics carry no meaning; they are just my drawings.
The magnetic lock needs 2 magnets 3 mm wide, no thicker than the material.