I bought this without realizing it was for slim PET bottles, and since I don't plan to use it, I'm putting it up for sale. One item is opened, and one item is unopened, just taken out of the box. This is a set of two items. I want to sell them together, so this product cannot be sold separately. Product Condition: The opened bottle cover has scratches and some minor damage (see image 2). I bought it for PET bottles, but it can also be used for 500ml cans or as a tumbler. Product Information: Material: Body: Stainless steel SUS304 Cover: Silicone rubber Color: Matte Black Size: Diameter: 7.5cm x Height: 15cm Weight: 190g Specifications: Keeps 500ml PET bottles and cans warm or cold easily. Double-walled stainless steel construction provides excellent heat and cold retention. Can be used as a tumbler by pouring beverages directly into it. No condensation, so it's safe to use on your desk. Slim shape that is easy for women to hold. * May not fit depending on the shape and material. Thank you.