This spare part can be used if the holder of the shower door breaks.

Slide the tongue fully into the two recesses in the frame. Then slide the tab over the tongue.

Printing information

I recommend PETG because it's more flexible than PLA.

All stl files are correctly aligned.

Layer height: 0.2
Infill: 100% 
Support: none
Brim: recommended for Tab.stl

I am looking forward to your Makes! :-)

If you like this design, feel free to check out my others here.