Stainless Steel Coffee Mug 380ml

Made of stainless steel liner material, make it more durable. Can hold 380ml of water and keep it warm for 6-12 hours. One push lid with lock system to avoid spillage or leakage. When you want to drink, just press the button and enjoy the hot water. Narrow design makes it easy to carry by hand or place inside cup holder, Bottom skid proof design and lightweight tumbler to easily carry inside a bag or put on the car/desk. It consists of stainless steel inner, tea septum, silica gel sealing ring, PP cover, silica gel sealing plug and PP water outlet, which makes the internal water unable to leak