Reinforced Details for Sturdy Structure:; Well-constructed for excellent sturdiness. Boasting the thicker wire diameter and dense wires to bring the closer wire gaps provides a safe, enclosed area for your pet to exercise and play. Reinforced frame in detail keeps walls not easily collapsing when pets knock over.Not Just for Dogs: ;This dynamic and expandable pet fence is not limited to dogs and is suitable for small or medium-sized animals such as toy poodles, corgis, rabbits, ducks, bunnies, and puppies. It can be used both indoors and outdoors.Easy Assembly:; Assembly of our dog fences is quick and easy, taking just a few minutes with the help of our detailed instructions. No tools are required for assembly. When using the playpen indoors, we recommend placing it on a dog pad or carpet to prevent scratching your floors or any noise disruptions.Safety & Security:; Ensuring the safety of your pets is of utmost importance to us. Our exercise pen is crafted with appropriate bar spacing and a latch that locks automatically as you close the door. Rounded edges also protect animals from injuries while preventing damage to wood or PVC floors. Additionally, stakes anchor the panels firmly to the grass or soft ground.Creating Different Shapes:; Each panel of this versatile dog playpen measures 26″ W × 31.5″ H. By connecting them with metal bars, the playpen can be assembled in various shapes and sizes, including square and rectangular configurations. Add or remove panels as needed to achieve the desired shape.;