This is a simple case with lid for the old style citadel clippers. The box has been designed for the clippers and the included foam to be placed in, with cut outs for magnets both in the box and lid to create the connection and keep shut.
Magnets used were these for reference https://www.amazon.co.uk/gp/product/B0BTLPVYFW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
The author marked this model as their own original creation.