The high quality, durable construction features an easy set-up design with dual-folding hinges that make it easy to add or remove panels. Door offers easy one-handed operation. The dual-folding hinge, folds flat in either direction for easy non-invasive storage. Convenient carry handle included. The durable construction includes eight 2 ft. wide panels totaling 16 feet in length and a 3-point locking door. The pen has an epoxy coated black finish to reinforce protection and increase the pen's value....a wise investment for serious professionals and pet enthusiasts! Versatile play yard features eight 24" wide panels that you arrange in your choice of layouts (4'x4' square, 6'x2' rectangle, 5'diameter circle, or 16' fence). 48" in height. Other height options are 24", 30", 36", and 42". Add the optional Play yard sunshade! Why an Exercise Pen?