Pocket Universe Box 

The pocket universe box is a box that somehow ended up in the humanoid world with unknown origin which it believe it came from a another planet or universe. It seem to look like a ordinary box, it reveal to be a pocket universe upon going inside of it which has infinite space that has no end t it and it can store up any items inside this box. This box is extremely durability which can withstand being crushed, getting ripped, and even prevent getting burned.

Weakness

While the box has incredible durability unlike normal cardboard boxes, the only way to destroy this box is extreme heat that is greater than the sun, extreme pressure, beings with reality warpers, and much more.