The Exo Terra Faunarium is a great way to transport reptiles, amphibians, mice, and arachnids. It can also be used to house feeder insects! The top has plenty of ventilation built-in, plus a small clear door that you can open for easy access without risk of your pet escaping. Because they're easily stackable, the Exo Terra Faunarium also makes for a great way to keep feeder insects like dubia roaches, crickets, mealworms, and more. Dimensions: 7.1"L x 4.7"W x 5.7"H Exo Terra Faunariums are not intended as long-term housing, and are incompatible with overhead heating and lighting equipment.