Type of supplies: Larval rearing, Quercus serrata (Konara oak), spawning wood/material Type of insects: Stag beetles, etc. Thank you very much for viewing. We have been breeding domestic and international stag beetles and other insects for about 25 years. ◆ Please read the following precautions carefully before purchasing! This is an extra-large, halved piece of high-quality Konara oak with Nikousubatake Kawara material, naturally harvested from our own forest and dried and aged for over 3 years. It's super soft and has magnificent Kawara mushrooms growing on it! To kill any insects inside the material, we have sterilized it with boiling water, as it is thick. However, it is recommended that you do it again before use. ▼ Images 1 and 3, and 2 and 4 in the listing images are the front and top/bottom cut images, respectively, taken with the material flipped over. ▼ As shown in the actual images, there is no core at all on both the top and bottom cut surfaces, and even in the center of the material, a toothpick can easily be inserted due to its softness! ■ Natural Quercus serrata (Konara oak) 　Nikousubatake Kawara spawning material 　Length: Approximately 14.5cm - 13.0cm 　Diameter: Approximately 17.5cm - 8.5cm 　　※ Dimensions do not include bark! 　　(Each is the maximum to minimum dimension!) ▲ Naturally harvested Nikousubatake Kawara material 　　　 3L Half-cut size × 1 set! ◆ It is impossible to check the entire contents of the material, so there may be some variation in hardness. ◆ As it is natural decaying wood, there are insect bite marks, but as the insects have been removed, there is no problem for breeding. ◆ If there are white parts or discoloration on the material, it is in a state where mycelia are present, so there is no problem. ◆ Measurements are taken by an amateur with a measuring tape, so please understand that there may be some errors. ★★★ Notes ★★★ ■ We will refrain from dealing with those with poor manners or who are loose. ■ We will refrain from dealing with those who cannot or do not communicate via transaction messages. Type...Spawning wood