This is a case designed for the Raspberry Pi 3 A+, with the intent to be worn on a belt, pocket, or on a shoulder strap. (Computer Bags, Backpacks, etc.) Since it's just a case, you really aren't bound to any singular use for the Pi.
I got the inspiration for this case from seeing a 1980s Walkman. (I've been on a 80s bender; Stranger Things, AHS 1984, etc.)
I could very well see this being used on a university campus, in your home, or other places where you might need a low power computer (besides just your phone) carried on you while you walk around known WIFI areas.
Solutech and Overture PLA
Standard Print Settings:
First Layer Print Height: .30mm
Wall Thickness: .40
Wall Perimeters: 3