We use natural Japanese oak, which is a favorite of stag beetles and rhinoceros beetles. It does not stand on its own. Horizontal placement is also fine. The cut surface has been made smooth with a saw blade. Made in Shizuoka Prefecture. We cultivate shiitake mushrooms in our own mountain forest. Pesticide-free and disinfectant-free. *How about using it as a breeding material for small animals and reptiles, in addition to insects? It is an unprocessed product except for cutting. The stag beetle is not included in the product. Please check the condition in the photos. Due to the natural wood, please understand that we cannot accept claims regarding the adhesion of dirt, etc. 【Notes】 Due to the natural wood, there may be bark peeling, drying cracks, insect bite marks, etc. Returns and exchanges are not possible to prevent trouble. Also, please purchase after understanding the above.