Thermal mug with a coating for sublimation printing, 420 ml capacity, featuring double metal walls. Leak-proof and excellent at retaining heat. The interior is made of high-quality 18/8 stainless steel. Equipped with a built-in thermometer in the lid with a replaceable CR2032 battery, which displays the drink’s temperature when the screen is touched. Includes a stainless steel infuser for brewing tea. It maintains a temperature of 40°C for up to 15 hours.