Vacuum thermal circle with double walls of stainless steel "Trigger" has not only a stylish design, but also many other advantages!Thanks to a special mechanism, thermal circle is completely sealed.The lid easily opens by pressing the button.There is a lock from random presses.For ease of use, there is a drinking hole and a strainer protected from the external environment.On the case you can make laser engraving, and the flat cover is ideal for UV printing.Holds heat for 8 hours.