Thank you for viewing. This is a natural wood perch for insects, with a tree hollow (hideout) created. - Size: Height 15.0cm, Width 9.5cm, Depth 12.0cm Tree hollow entrance 4.5cm x 2.0cm (See photo 10) - Material: Natural wood (Quercus acutissima) - Uses: Insect breeding perch, hideout, feeding platform - Features: The bottom is split, and the bottom can be removed with screws. A jelly holder hole is provided on the top. (Diameter 4cm) For reference, a photo of a Dorcus hopei binodulosus (75mm) is included. ※The Dorcus hopei binodulosus is not included in the product. Japanese rhinoceros beetle Prosopocoilus inclinatus