Thank you for viewing. This is a natural wood perch for insects, with a tree hollow (hideout) created. - Size: Height 23.0cm, Width 26.5cm, Tree hollow entrance 5.0cm x 2.0cm (See photo 9) - 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 on the top surface. (4cm in diameter) 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 Japanese flat stag beetle