Two Layers Stainless Steel Vacuum Water Bottle 1.0 L/ 1000ML BuBee D-1000 Made In Taiwan Product Description ABOUT BUBEE BUBEE Is manufacture by Lee Join Enterprise Co. Ltd. was founded in 1993. They are a well-established company with good reputation. They are a specialized ODM and OEM manufacturer in manufacturing double-layerd high stainless steel household goods. They have also been researching and developing new products and promoting their own brand (BUBEE). They have a variety of products with high quality assurance and they have been exporting their products to worldwide markets. With more than ten-year experience in this industry, they provide high quality products and guarantee best service. They try to satisfy their clients in every possible way and their requirements are always on our mind. Stainless steel #304 Double layer wall with stainless steel interior The antibacterial effect could be up to 99?in the stopper and cap, take apart the stopper for washing. This stopper switch had 200,000 times by attrition tested This inner bottle had electrolysis and many times ultrasonic washed, it?s will keep Keep hot water up 10 to 12 hours {Warm effect: By 97? hot water inside after covering thur check hours. ( warm effect 3? )} * Keep icy with no drop outside Made In Taiwan