I designed this for my daughter's tack trunk which has very sharp metal corners. I used Krazy glue to attach these.

This corner protector can also be used to protect children from sharp table corners etc. I used double sided picture hanging tape to attach which seems to hold very well and is removable with some force. Please use your own judgment to confirm that the corner protector is taped or glued securely.

I printed this with flex filament, 0.3mm layer height, 15% infill.