This is a reset key for an EU-style fire alarm (similar to this one).
Printer: Anycubic i3 Mega
Rafts: No
Supports: Yes
Resolution: 0.2
Infill: 20%
Notes:
Print vertically with supports. Also, a largeish brim (20 lines) or so is essential.
The author marked this model as their own original creation. Imported from Thingiverse.