The Room Ring is a small, unremarkable, silver ring. While attuned to the ring, you may knock on any unlocked door, and open it to reveal an entrance into an extradimensional room. This room is a 10 foot by 10 foot by 10 foot cube. As soon as you exit the room and shut the door, the door returns to its non-magical state. Items and creatures may stay in this room, but they will not experience the passage of time while in the room and while no doorways to the room exist. Everything within the room will stay in the room between uses of the ring, allowing the user to use it as a kind of storage space. The room's contents transfer with the user of the ring, meaning all of the previous users' things may still be in the room when a new user first accesses it.