Ear Plug Pocket Case

thingiverse

small case stores earplugs in your pocket, utilizing a pen spring and one #4-40 x .438in socket head cap screw. tap the hole in the case with a #4-40 tap before assembling it as shown in the exploded view. the case relies on the pen spring and pin to serve as a detent that keeps the case either closed or open, snapping into 4 different positions.