Thank you for viewing. This is a natural wood perch for insects, with a tree hollow (hideout) created. - Size ①: Height 13.0 cm, Width 10.5 cm : Tree hollow entrance 4.5 cm x 2.0 cm - Size ②: Height 7.5 cm, Width 10.0 cm : Tree hollow entrance 4.5 cm x 2.0 cm (See photo 6) - Material: Natural wood - Uses: Insect breeding perch, hideout, feeding platform - Features: With a jelly holder hole on the top (4 cm in diameter) 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