The dog cage is made of heavy-duty frame and high-strength metal wire, with professional coating, smooth surface and rust-proof, making it a durable and reliable choice for your pet. The lid on the top of this dog cage is a detachable design. Remove the top cover to turn the cage into a playpen, which can easily interact with your dog. In addition, the pet cage can also be used for other small animal cages, such as rabbits and pet pigs. Blue Elephant