Magnetic screw tray and organiser for electronics repair - optimised for 3DS

I couldn't find anything to help manage and keep track of screws removed from devices for disassembly and repair that I liked. This has 18 pockets for 18x3mm (with adhesive pad) or 18x4mm (glued) circular magnets. These insert from the bottom, and allow you to stick your tool tray to a metal desk/cabinet for storage. The magnets keep the screws from leaving and I've tested shaking the tray at 90 degrees vertical and screws hold steady. There are 14mm tall recesses for labels to be added if desired which will fit standard P-Touch labels There are also 4 pockets for rubber feet should you wish to use them.