Guinea pig cages are specially designed enclosures that provide a safe and comfortable living space for guinea pigs. These cages should be spacious, allowing for movement and exercise, as well as include areas for hiding, sleeping, and eating. Proper ventilation and easy access for cleaning are also important features. When choosing a cage, consider the size and number of guinea pigs you have. A minimum of 7.5 square feet is recommended for one or two guinea pigs. Additionally, the cage should be made of safe materials, avoiding wire bottoms that can hurt their feet.