These are replacements for the upper gate side and lower wall side hinges of a Munchkin hardware mount gate. I have two of these gates, and after years of abuse by kids hanging off of them these hinge parts broke on both. In the photos the gray are the broken originals and the black are the replacements. A perfect fit!

I printed these in PETG with a 0.6 mm nozzle, but other filaments and nozzle sizes would certainly work as well.