Bag of unholding

This is a bag, it may look like it's much more well known lookalike the "bag of holding" but this is quite different. The bag of unholding when closed and an item of any size is placed inside, the contents are teleported in a completely random place in the dimension the bag is in. Note, the amount of space inside the bag is infinitely big but the outside is the size of a large coin purse, and if a bag of unholding is placed in another bag of unholding would make the holder of the bags instantly vanish to a random place in the universe