Premium Brand Mitsugusa Kunugi Breeding and Egg-Laying Wood A' Grade 1 case of 9 pieces Length: 13cm-14cm Diameter: 9cm ● These are high-quality materials, good enough to be sold as A-grade. They are listed as A' grade due to slight stains. The stains are only a cosmetic issue and do not affect egg-laying. * I've selected these materials as if I were using them for my own breeding. * This time, all materials are high-quality Kunugi. * When cutting the wood, I selected pieces with minimal core and fewer bacteria from a large quantity of materials. Each piece of wood has been carefully selected to be gentle for stag beetle egg-laying and larval rearing. There is a core, but it is minimal, making it very easy to use. * This wood can be used for any type of stag beetle. * I will continue to offer easy-to-use materials, but differences in price at the time of listing are based on "differences in appearance" while the "quality is the same." * We have achieved prolific egg-laying with Yaeyama Kuwagata, Kuroshima Noko, Schenkling, Antaeus, Okuwagata, Hirata-kei, Futamata-kei, Rainbow beetles, etc. We use "Kawaguchi Shokai Special Selection Stag Beetle Mat" and the wood and mat integrate to produce excellent results. Why not experience the taste of prolific egg-laying? Please give it a try.