These are trigger button extenders for the PlayStation 4 controller That I'd made for a friend of mine who has Muscular Dystrophy. There are two different kinds to suit your needs.
I have not tested these on an actual PS4 controller yet, as I don't actually have one, So if I need to make changes please let me know.
They are designed to be glued or double sided taped to the controller button.
Hope it works for you.