This is a very minimalist and tiny usb case for the legendary Sandisk Cruzer Blade 32gb usb drive, they're about $7 and if you get the chip out of it as seen in the pictures, then it just slots into the 3d printed case. Very simple print as well, I recommend using two colours, it fits on your keys really well, you won't notice it and slots into the actual port very satisfyingly too.