Living World Small Pals Pens combine durability, security, versatility, and ease of transport to create the perfect temporary oasis for your pet. Suitable as short term housing for small animals, fish and reptiles, Small Pals Pens can function as a pet carrier, temporary aquarium, terrarium, small animal pen, or as a nursery. The unique lightweight design includes a solid moulded structure, a secure snap-locking lid, complete ventilation, and a hole incorporated in the lid for air tubing. Breakaway hinges, a removable lid, and rounded edges enable easy cleaning. Available in a variety of sizes. Please note we strongly advise the use of an appropriate filter if used as an aquarium.