Material: Stainless Steel; Color: Natural Size as shown in the picture; Can also be used in the office. A little wave? Do not use in oven. Because it is made of metal, please be careful of the handle heat. Beware of hot water. Made of stainless steel, it is gentle on the body and can bring out the taste of tea itself. Even if you put it in hot water, it will not deformIt is also very convenient to clean. The lid keeps the temperature and allows you to drink your tea at any time. Enjoy the fun of tea.