Thank you for viewing! This is a portable cigarette case made of cowhide. It can be used to hold electronic cigarettes, paper cigarettes, and cigarette butts, and can be carried in a pocket or bag. This is a prototype, so the ashtray inside cannot be replaced. You will need to discard the butts as they accumulate. The size is approximately 9cm tall and 8cm wide. The key ring uses a snap hook, so you can use it together. If you have any questions, please ask in the comments.