Okadi Black Stainless Steel Thermos With Straw 560Ml

* The material is double-walled stainless steel. * Made of 316 stainless steel inside and 304 stainless steel outside. * Maintains temperature for 9-12 hours (as long as the lid is closed). * Helps keep your drinks hot or cold. * Should not be used for carbonated drinks. * To prevent odor, leave the lid open when not in use. * Hand washing is recommended. * Manufactured in China with Tantitoni guarantee.