With the ingeniously simple archiving app, you can organize and archive boxes and items clearly on your smartphone, thanks to the individual QR code provided with all Rotho storage boxes. The transparency of the boxes ensures that the contents are always visible. The lids engage easily on two sides and can be completely removed at any time. All sizes can be stacked together, and two small boxes always fit on the next bigger box. Since the lids and boxes can be stacked one inside the other, they can be stored in a space-saving manner when not in use.