Steam Deck back buttons (L4, L5 & R4, R5)

it is a add-on upgrade  for Steamdeck back buttons (extruded 4mm)
it enhance the feeling press from the back but not from the side.
it should be fit in  the official Steamdeck carrying case.

- Use double tape to tape it on L4 & L5 buttons

- Mirror the files for R4 & R5

A 6mm extruded version also uploaded, better feel but not much fit in the case as 4mm version. Use as your own risk.

Enjoy