Stuffed means that it is broken and no longer works. I have pulled the switch apart and the button is pushed in and stays there. So it will not click in or out. Reason I ask is that this switch seems to be square whereby a lot of others I have seen are rectangle. I have measured it at 11mm sq by 6mm high
I use these in my Y3’s with a 16.5mm O.D. x 8.5mm I.D. x 1.5mm thick flat washer on top, and trim the boot nub off clean? If you don’t mind FW’d clickies? 17mm Forward Clicky Switch with Spring and PCB