Hello! This is a universal key. It's used to open electric cabinets and many other restricted areas. I designed it to train myself. I have in mind to upgrade it. If this post gets 100 likes I will release a new version which does not require supports to be printed.

Good news the Universal Key Without supports gonna arrived pretty soon... ;)

I am not responsible for the use you do with this thing. Personally, I will recommend to keep it for your 3D print's collections.