This keychain is designed to have the function of carrying your own earphones, or any other cable (like your phone's charger). It allows you to wrap around it all the cables/wires you need and takes on an aesthetically beatiful shape.
This keychian can be made with the Prusa printer in the time of 4 hours. It's 8.00 cm long and a 3.00 cm high with a thickness of 0.50 cm.
The author hasn't provided the model origin yet.