This thing is a little camera privacy slider for laptops and monitors, or anything with a camera. Print it bigger for larger cameras. I used some basic double-sided Scotch tape to affix it to my Macbook. I'd recommend only putting tape on the large flat space and not around the opening, as It can be a pain cutting it out. Also, you may need to lightly sand the long edges of the slider piece with ~320 grit sandpaper if it fits too snuggly.

Dimensions: 25mm X 11mm x 0.9mm