We use natural oak logs that are a favorite of stag beetles and rhinoceros beetles. Made in Shizuoka Prefecture. Total length approximately 22-23cm Includes 4 medium and 6 thin logs, for a total of 10 logs. We cultivate shiitake mushrooms in our own mountain forest. Pesticide-free and disinfectant-free, safe for pets. *How about using it as a breeding material for small animals and reptiles, in addition to insects? Unprocessed except for cutting. The cut surfaces are finished neatly with a saw blade. Stag beetles are 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 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. Please purchase after understanding these conditions.