Thank you for viewing. This is a natural wood perch for insects, with a tree hollow (hideout) created. - Size: Height 22.6cm, Width 15.5cm, Tree hollow entrance ① 6.0cm x 2.5cm (See photo 12 for details) - Material: Natural wood (Japanese oak) - Uses: Insect breeding perch, hideout, feeding platform - Features: With a jelly placement hole on the top (4cm in diameter). The tree hollow part and the base part can be separated and removed with screws. - For reference, a photo of a Japanese giant stag beetle (75mm) is included. (The Japanese giant stag beetle is not included in the product.) Japanese rhinoceros beetle Flat stag beetle