KEEP WARM AND COLD: Our double wall vacuum insulated travel mug is made of premium insulation, to keep hot and cold liquids (water, coffee, tea) at ideal temperature for up to 12 hours. Temperature locked 24/7. WIDE OPENING DESIGN: The wide opening of this thermos mug can easily insert a sponge or brush for cleaning, ensuring your bottle stays fresh and odor-free while enjoying your drink. FOOD-GRADE MATERIAL: VAODO Stainless Steel Water Bottle is made of non-toxic, BPA-free 18/8 professional-grade stainless steel material, which can protect the coffee bottle from oxidation and flavor transfer, allowing you to use it with more confidence. PERFECT GIFT: This double-layer stainless steel sports bottle set includes 3 travel lids, it's not only a lid, but also a drinking glass. The sports water bottle with a handle is perfect for everyday use and can be taken anywhere, such as hiking, cycling, gym, camping, and more. And it comes with a gift box, which is a good gift. MULTI-FUNCTION IN THE CITY or OUTDOORS -- The high-quality lid can double as an insulated service cup. The twisting and dumping function allows you to pour it without moving the stopper and put it in the bag without worrying about overflow or leakage. The perfect drink anywhere!