Precision Pet 48 in. Silver Exercise Pen with Door: Tough, durable and portable exercise pen features easy set-up design with dual-folding hinges that make it easy to add or remove panels. The dual-folding hinge, folds flat in either direction for easy non-invasive storage. The durable construction includes eight 2 ft. wide panels totaling 16 feet in length. The pen has a zinc electroplate finish, added after welding, to reinforce protection and increase the pen"s value. This versatile play yard allows you arrange in your choice of layouts. Offered in a variety of heights.