2 Panels Playpen: Each dog playpen has 2 panels, that connect with the long iron stakes to give your pet a decent area for playing and resting Heavy Duty: Recommend setting this playpen on flat ground. Our sturdy 2-panel dog playpen is made of electrophoresis metal panels and stakes, anti-oxidated 0.6 x 0.6’’ square tubes ensuring safe and long-term use no matter indoor or outdoor Indoor & Outdoor: This pet exercise barrier is ideal for both indoor and outdoor use. Your pet will have his/her paradise in the house and have a happy playground back in the yard or camping Convenient to Store: This playpen can be disassembled into a flat compact size for easy storing when not in use. The flat packing size is also convenient to transport. The shape is changeable if you select more than one set of panels Flexible: Panels are connected by metal anchor stakes. If you select more than one set of panels, detachable panels can be set up in different shapes by adding or removing panels, helping you build a pet pen according to the space and your needs