You need two magnet with a size of 5x1mm and a superglue.
After print place the magnete with superglue in the holes.
I used Bambu Lab PLA Matte.
Dimensions:
high: 31,5mm
width: 61,6mm
length: 62,5mm
If you like my print, please give me a feedback and rating.
Also if you have any issue please let me know.