Use on an inset door (cased for 2x4 wall but installed in 2x6 wall,) to prevent door from opening too far and banging into tables/shelves/etc behind it. Made from TPU, 30% infill, and has hidden 1mm holes inside to create walls around the holes for further strengthening, reducing "squish". Shown upside-down as printed to eliminate supports. Goes on top of hinge with the hinge pin goes through the hole.

This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/4REAMJRV0NN