Recommended for aquarium materials! Chestnut wood. When placed on soft surfaces like wood shavings, it will tip over due to its rear-heavy center of gravity, so please adjust by creating a slope or similar. We will ship it in a recycled cardboard box. Please note that bark or wood shavings may peel off during transportation. Due to the natural material, there is a possibility of insects attaching or being mixed in. Please refrain from purchasing if you are sensitive to this. Insect shelter Insect jelly dish Aquarium Tree hollow Japanese giant stag beetle Japanese rhinoceros beetle Dorcus Hall Kabukuwa Kabukuwa Climbing wood Perch Terrarium Paludarium Craft wood Hollow Reptiles Insect mat Insect jelly Pro jelly