ANENG pen-shaped multimeter case
Plug-in case for ANENG pen multimeter (replacement for paper box)
You can buy a cheap multimeter here
https://www.aliexpress.com/item/1005006866919580.html?
I printed the cover with AMS
The lid fits into the base very tightly, remove the protrusions after printing.
As you slide the lid off, lift the edge slightly with your fingernail and slide it to the side