The works from the collaboration of British design master George Sowden and HAY use HAY’s most distinctive color stitching, giving the thermos bottle for daily use an innovative and bright shape, bringing a good mood of life every day. -The most asked about new products -Material coating does not fade -Slim design for easy carrying -Designed in Denmark/UK, made in China Size: 350 ml | diameter 7 x height 20.5 cm 500 ml | diameter 7 x height 26 cm Material: plastic, stainless steel inner layer Cleaning method: generally clean with water, avoid using sharp objects to scratch the surface. ! Be careful not to use it in milk, baby food, fruit juice and carbonated drinks to avoid internal pressure and corrosion damage to the body. If carbonated beverages such as soda and cola are contained, it is easy to cause excessive pressure and release of carbon dioxide, causing the beverage to spurt or the food to be destroyed; as for darker beverages such as milk, juice, and tea, they should not be put in a thermos to avoid taste And color remains, not easy to clean.