SmithBuilt Tall Puppy Dog Playpen - Portable Indoor Outdoor Pet Exercise Play Yard Pen Run with Carrying Bag - Black - Various Sizes ADJUSTABLE & EXPANDABLE: 16' of panels allow you several set-up options for your pet. Can be converted into many different shapes, including a 5' wide octagon, 4' x 4' square, or a 6' x 2' rectangle. This 8-panel outdoor dog enclosure can also be joined with a pet crate, or is even expandable with another pen of the same size to create an expansive playpen for multiple pets. LIGHTWEIGHT & PORTABLE: Easy-to-fold, lightweight yet sturdy construction is great for travel and storage, collapsing to about 2 thick in an instant. Includes a zippered, all-weather nylon carrying case and with an adjustable strap. PREMIUM-QUALITY: Expertly manufactured of 6-gauge, high tensile-strength, all-steel wire securely formed and welded into a tight mesh pattern, this premium-grade pop-up pen is built-to-last. Stable, secure design features an easy-access, latch-bolting doorway. RUST & CORROSION RESISTANT: Finished with an ultra-durable black epoxy coating, this indoor/outdoor pet play yard is rust, corrosion, and fade resistant, even in extreme climates  and is stronger and far superior to competing "electro" or "powder" coat finishes. QUICK, TOOL-FREE SETUP: Fully pre-assembled, set up takes just seconds, with no tools required. Simply place pen in the desired shape or configuration, and use the included spring-loaded clips to join the last panel. Unique fold-and-carry design provides easy transfer from home to vehicle, or to collapse and store.