Sorry for the shorthand. That's an exercise pen. For a dwarf the bars might be too far apart if it were made for dogs, but look on amazon at the Marshall small animal playpen, which is what I bought. The mat that comes with some models is worthless [replace with linoleum or a tightly-woven rug]. And it doesn't have a door, but you can make a fold-down door & add to the space by using 2 or 3 cake cooling pans & attach them with carbinders to the places where the pen fits together. That's the setup I use myself, or Honey uses. It can be arranged as a square, a rectangle, or a near-circle. I put bricks at the corners so Honey can't move it. It's really easy to clean & you can sit in it & interact with your rabbit.