IRIS 24'' Exercise 4-Panel Pet Playpen with Door, Chrome The IRIS 24'' Exercise 4-Panel Dog Playpen with Door can be used for dog play yards, play gate, small dog fence, and more. The IRIS playpen is portable and provides 8 square feet of play space for pets. Dog playpen with door is made of durable, heavy-duty molded plastic. IRIS dog exercise pen with door is made in the USA. IRIS Playpen measures: 35.25&quot;L x 35.25&quot;W x 24&quot;H Add-on panels are available to create large pet playpen.