This case is for the Ledger Flex hardware wallet. I decided to build a Version with a magnetic lid.
You need:
2 x M2x25mm (i sanded down the lower 20mm of the thread a bit and glued the top 10 mm with super glue) - 2-3 x 3x1mm neodym magnets (one in the lid and one in the base - you can also put a 3x2mm magnet in the base)