【Temperature Display】Unlike ordinary thermos mugs, our thermal coffee mug lids are designed with a temperature display that shows the current temperature of your coffee, so you can easily monitor the temperature and enjoy your coffee at optimal drinking temperatures.【High-Quality Material】Our thermal coffee mug is made of 316 stainless steel, which is more corrosion-resistant, harder, and less prone to deformation than most 304 stainless steel on the market.【Long-lasting Heat Retention】This thermal coffee mug features a double-walled vacuum insulation design that keeps your drink hot or cold at room temperature. The exterior is frosted and insulated to lock in heat and protect your hands from burns. 【Unique Design】The body of this stainless steel thermal coffee mug has vertical non-slip lines, and the bottom has non-slip silicone to increase comfort and reduce the risk of falls. The lid has a drinking spout, so you can drink slowly and happily. In addition, the detachable hand strap allows you to carry it conveniently, making it ideal for travel, outings, and outdoor use.