Flukers Natural Looking Rock Cave is the perfect hiding space for reptiles, amphibians and arachnids. Made of heavy material which prevents animals from moving it in the terrarium. Easy to wash and disinfect. Shades / colors vary. Exterior dimensions: 8.5" wide by 7" deep by 3.25" tall. Interior dimensions: 6.25" wide by 4" deep by 2.25" tall. Cave opening is 2.25" wide by 1.75" tall.