This is a deckbox made for a 60 double sleeved card deck, can be any TCG as long as they're standard or smaller cards.

You should be putting raw filament in between the opening mechanism to hold it together.

In the magnet version I used 5x1mm magnets to keep the lid closed, but you can edit it to make a closing mechanism.

I've also created a version with a window for my Brawl decks.