・Substrate for mealworms ・Additive for fermented mats for stag beetles and rhinoceros beetles ・Can be used as an additive for mycelia, etc. To prevent insect contamination and for quality control, it is stored in a refrigerator. Please avoid high-temperature and high-humidity environments for storage. Please store in a refrigerator after opening, during the summer, or for long-term storage. Contents: 1kg 1kg x 1 bag (in a zip-lock plastic bag) Shipping costs will be high, so we cannot combine packaging. Purchasing items individually will be cheaper. Thank you for your understanding.