Thank you for your interest in the product. [Product Description] This is a set of 10 larval management sheets (for 100 larvae). ...This was made as a hobby! I made too many, so I'm offering them to those who need them! ...If you change the mat frequently, you can add notes in the extra space! [Condition] New, unused Due to printing errors, there may be some thick and thin black lines. These are not stickers, so please attach them with tape! This was made as a hobby, so there are no returns, refunds, or warranties, but thank you for your understanding! Japanese rhinoceros beetle, stag beetle, breeding