A dimensional room is a space where the owner can freely enter and exit. It can be as small as the size of a small bucket, a small room, the size of a house or a huge space bigger than multiple international airports combined.
Dimension room uses a type of space explanation magic that takes only a nano centimetre of space to create. It also depends on the aura the owner holds and it also helps the owner to create new rooms or space in just a magic spell.
From the inside, a dimension room can be as big as a whole city but on the outside, human eye can barely see it. It's like a floating, nearly transparent dot, so even if a person notices its existence, he can't touch it because it is a spiritual object.
Even a spiritual being can't touch it or enter the dimension room because it needs permission from the owner everytime just to enter and exit.
