D&D Dice box 20x5x2 magnets

Remixed from https://www.thingiverse.com/thing:3180130 by smrogers91.
The magnets I had weren't strong enough, so I made it to work with the 20x5x2 rectangular magnets like these https://www.amazon.com/Multi-Function-Refrigerator-Technology-Engineering-Educational/dp/B07Q6564FB.