EXTRA PANELS FOR MORE SPACE: IRIS USA's 24" Tall Pet Playpen 2 Panel Add-On is perfect for creating more space for your furry friends when they grow, or simply to give them some additional space! Customize how you want without buying another playpen. FITS PERFECT: This Add-on panel is designed to perfectly fit IRIS USA's CI-604E, CI-606E, and CI-608E pet playpens. Not only for playpens, but you can also use these to make gates or small fences. EASY ASSEMBLY: Built with convenience in mind, these can be put together easily by snapping the panels into place. The foldable design and easy storage make these add-on panels easy to set up and take down quickly, without the need for any tools or complicated instructions. DURABLE AND MADE IN USA: This playpen is made with durable, heavy-duty molded plastic and is ready for playtime both indoors and outdoors. The material is easy to clean. Proudly made in the USA with global materials. DIMENSIONS FOR EACH PANEL: 35.1" W x 1.1" D x 23.8" H