Petmate 8 Panels Exercise Pen with Step Through Door KEEPS PETS SAFE AND SECURE: Wire dog pen has a durable, solid-hinge design and double-door latches to keep pets safe and secure VERSATILE ARRANGEMENT: Wire pen has ground stakes and adjustable panels that can be easily adapted for different uses indoors and outdoors as a dog playpen or kitten playpen SIMPLE, NO-TOOL ASSEMBLY: Metal pet pen's snap hooks provide easy assembly with no tools required EASY PORTABILITY: Portable dog pen folds flat for easy transportation and storage STEP-THROUGH DOOR: Metal wire dog pen's raised door provides easy access for pets and pet parents 5 DIFFERENT HEIGHTS: Available in 5 different heights to accommodate all sizes of pets, this pen makes an excellent pet playpen for cats or puppy exercise pen for dogs