304 Stainless Steel Material: the package comes with 2 pieces of thermal coffee carafes ( silver) and 2 pieces of cleaning brushes ( blue handle) , the inside of the carafe are made of 304 stainless steel ( Please note that the top cover and handle are plastic) , solid and reliable to use for a long time, and they are safe for you to put water inside, they will not rust easily, and convenient to cleanEasy to Use: you can press the button on the top of the thermal pot to pour water, which are convenient to do this job, and the spiral lid can make it leakproof, you don't need to worry about the stuff inside will leak out easily, and the handle design can let you hold and use it easilyKeeping Cold and Hot: the thermal carafe can keep hot and cold, it can keep hot for about 6 hours, and keep cold up for 24 hours, which is convenient to use depending on the different situationsSuitable Siz...