UWR-Nite Pet Playpen, Small Animals Cage DIY Wire Fence with Door for Indoor/Outdoor Use, Portable Yard Fence for Small Animal, Puppies, Kitties, Bunny, Turtle 56 x 28 x 14. Description: Do you need a universal Pet Playpen? If so, you can have a try of our Pet Playpen, Small Animal Cage Indoor Portable Metal Wire Yard Fence for Small Animals, Guinea Pigs, Rabbits Kennel Crate Fence Tent. This Pet Playpen is easy to assemble but is very strong. For all kinds of animals: hedgehogs, hamsters, guinea pigs or rabbits,they can have fun in this fen