The STL file is free, but you will need to create an account, add to cart and "check out" to download it.
Jonah designed this key ring separator to make taking keys (& other things) on and off key rings a little easier.
USB drive not included, but there is a place for one in the design. The one in the photo is a Lexar LJDS45.
Key Ring Separator by Partsbuilt 3D is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.