Built for puppies and small to medium dogs that need supervised space, this 8 panel exercise pen folds open into a 63 in octagon with 24 in tall walls. The Q235 metal frame resists chewing while the included 600D Oxford and mesh top cover blocks escapes from above and adds shade. Sixteen tension straps lock panels together and eight 3.9 in ground stakes anchor the pen to grass for backyard play camping trips and yard training.