This is a Tupperware eco-bottle. It comes as a set with a bottle case. Tupperware products are no longer sold in Japan, making them difficult to obtain now. New and unused items are rare, so please consider this. Both are new and unused. It's a convenient size for carrying, and recommended for everyday use with water, tea, etc. The case has a carabiner, so you can attach it to bags, etc. [Set Contents] - Eco-bottle - Bottle case Although new, they have been stored at home, so please only consider if you understand this. Tupperware / Eco-bottle / Water bottle / My bottle / Bottle case