Practical Pet Playpen: Our dog playpen is constructed from sturdy metal for increased longevity and durability that can be applied for indoor and RV camping, traveling, or other yard activities. Also, you can use it to limit your pets’ exercise area or to separate different pets Creating Different Shapes: Rectangle enclosure dimensions and area: 57.5" L × 28" W × 47.2" H and 11.2 sq. ft. Panels are connected by metal bars, which allow this dog playpen to be flexibly built in different shapes such as square and rectangle in different sizes by adding or removing panels Larger Playpen Available: Each panel measures 28″ W × 47.5″ H. Six pet playpens can be connected to a larger enclosure space that allows your pets to rest and play without worrying about them running off. You can buy more sets to increase the size of the playpen Easy Assembly: Dog fences are easy to set up in a few minutes under detailed instructions. No tools are required. We recommend placing them on a dog pad or carpet to prevent the rods from scratching the floor or making noise during indoor use Safe & Secure: Appropriate bar spacing keeps your pets safe in the exercise pen. Two latches on the door lock automatically as you close. Rounded edges protect animals, which also prevents causing damage to wood/PVC floors. Stakes not only connect the panels firmly but also anchor the panels to the grassland or soft ground