spring hinge for the Pokeball

Hi Pokemon trainers!

Here is my modified version of the Pokeball (lid and top ring). I changed the rear hinge so that you can insert a torsion spring. This allows the pokeball to open automatically when you press the button. Maybe something needs to be sanded down here and there. Here is an Amazon link with the torsion spring I use.

https://www.amazon.de/dp/B0BKQFKPVF?psc=1&ref=ppx_yo2ov_dt_b_product_details