The California Beach Co. offers the world’s lightest and most portable playpen for smaller spaces! Our Pop N' Go®Pets playpen is perfect for indoor or outdoor use with cats, dogs. We use fiberglass framing, weave-mesh netting, and high-quality materials to build and reinforce portable pet play yards that last for years! Our patented “pop-up and down” is easy to use, safety-certified, and makes set up and take down convenient. You and your little ones will also love our custom-fitted mattress, which is included for extra comfort!