【Stainless steel material】：Many people don't realize that the cup they drink from every day has a great relationship with their health. When you pour hot water into a plastic cup. Hot water dissolves small amounts of plastic. You eat tiny amounts of plastic every time you drink water. Using stainless steel products can avoid this problem. This is also the Ercao brand products are as far as possible not to use plastic materials. 【Keep warm for more than 12 hours】：Double-layer stainless steel construction reduces temperature transfer. Ensures thermal insulation performance. 【Anti-hot hand】：This is also the advantage of double stainless steel structure. Even if the water in the cup is very hot. The outer layer of the cup is also similar to the ambient temperature. 【Stylish appearance】：A cup can also be very trendy. Our products must be full of artistic sense. 【Ercao】：Please identify our brand. To get better service.