Cases for Pro Micro USB-C

Cases for Pro Micro USB-C (ATmega32U4 chip) in 4 variants:

• non-reopenable with pin holes
• non-reopenable without pin holes
• reopenable with pin holes
• reopenable without pin holes

The variants with a re-opening closure have a closing mechanism that is easy to pry open, which makes it easier to open. The variants with a non-re-opening closure, on the other hand, are closed with 4 identical cylinders placed in the corners of the housing.