This is ONLY FOR SMALL DOGS. I have a Yorkee 20lbs and a 10lb mix. It’s not very big AT ALL. The panels hit me just at the knees or a little above. I would only leave them in it temporarily because there is little to no playroom. I will be buying another to enlarge the space for them.  It serves its purpose and very easy to assemble. Works best on even ground. Overall great for temporary purposes.