The Exo Terra Ceramic Corner Caves come in 3 sizes; small (13cm x 9.5cm x 7.5cm), medium (18cm x 13cm x 9.5cm), and large (21cm x 15.5cm x 11.5cm). They are a new eco-friendly range from Exo Terra which features a space-saving design to fit any terrarium. Key features: Natural aesthetic Ideal hiding spot Available in 3 sizes Space-saving design Ideal for egg-laying Can contain a water reservoir What are the benefits of this cave. The water reservoirs are good to help maintain and regulate the humidity and temperature of the caves due to the ceramic absorbing and slowly releasing the moisture into the cave which creates a healthy environment and prevents respiratory infections. Due to the aesthetically pleasing corner design of the cave, it is good to fit into any corner of a terrarium. This space-saving design is amazing as it allows you to populate your terrarium with more reptile decorations without it looking overcrowded. Without a hiding spot your reptile may become stressed, which will affect their appetite, activity levels and general well-being.