We, The Last Co., based in London, are aiming to change people's awareness of disposable plastic. We are also promoting the selection of reusable daily necessities, aiming to change habits through small but scalable actions. This is a reusable, portable telescopic straw with a keychain. It comes in an aluminum case. The key ring makes the straw easy to carry. The telescopic straw can be extended up to 19 cm. Made of food-grade stainless steel, it can be used with most standard cups, takeout cups, and bottles. Dishwasher safe. From the above HP description I purchased this but am selling it because I have never used it. Although it is unused, I have touched the straw part with my hands. We recommend that you wash it thoroughly before use.