Pet cage is an enclosure or a box which is used to protect pets. Pet cages are also used to display animals in a zoo. Pet cages are made of mesh, wires, or bars. There are various regulatory bodies across the world to control the quality, safety, and standard of pet cages. World Animal Protection Organization, Ontario SPCA, American Rabbit Breeders Association, Inc. are some of the regulatory bodies. Pet cages are available in different colors, size, materials, and shape. In addition, pet cages are easy to use and clean.