Thank you for viewing. This is a natural wood perch for insects, with a tree hollow (hideout) created. - Size: Height 15.0cm, Width 11.0cm, Tree hollow entrance 5.5cm x 2.0cm (See photo 8 for details) - Material: Natural wood (Quercus acutissima) - Uses: Insect breeding perch, hideout, feeding platform - Design: Natural wood texture - Features: With a jelly holder hole on the top (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.) Dorcus hopei binodulosus Dorcus titanus Japanese rhinoceros beetle Kuwalium (likely a typo for "terrarium") Hollow