Thank you for viewing. This is a homemade artificial pupal chamber. Although there are some rough parts in the construction, there are no problems with its function. Since it is a handmade item, please refrain from purchasing if you are sensitive to imperfections. This is a spare, so it is unused. I will also send the case's Tupperware and lid together, so I think it will be easy to use and manage humidity. The size of the pupal chamber is 7 x 3.6 cm. It should be just the right size for female Dorcus rectus or Prosopocoilus inclinatus, etc. I can also make other sizes, so please let me know if you have any requests. Please ask any questions in the comments.