HANDY THERMAL MUG, DRINK - WITHOUT UNSWINGING AND OPENING IDEAL FOR CAR, WORK, UNIVERSITY AND TRIP. The cup is made of extremely durable 18/8 stainless steel, naturally BPA-free. The use of a vacuum between two walls allows you to maintain the desired temperature for a long time, a hot drink for 3 hours, a cold one for 4, and ice for up to 22 hours. The lid of the cup can be easily unscrewed to thoroughly clean each of the elements - it is a design solution that ensures hygiene of the cup used. The drink is released by tilting the cup to the mouth and pressing the button with one finger. This allows drinking without opening or unscrewing the cup. 100% leak-proof guarantee. The cup fits most car and bicycle holders. Fits under most coffee machines. Dishwasher safe. The temperature maintenance parameters are based on a full vessel, not opened for a specified period of time. Opening the vessel and partially draining the vessel will lose its initial temperature more quickly. To extend the temperature retention time, it is recommended to first fill the vessel with hot water and leave it tightly closed for five minutes, then empty it, fill it with the desired drink or food and seal it tightly. If the product is to be stored cold or cool, use cold water.