Use "do not throw away" life. Take good care of your resources. At home or outside. Both cold and warm. Whether it's a guy or a doko. An earth-friendly heat-retaining mug. The main body has a vacuum structure, and it has excellent heat and cold insulation effects. Even if you put cold drinks, it will not condense, and even if you put hot drinks, the outside will not get hot. Size: φ71 × H148mm Capacity Approx. 340ml Material: Stainless steel (18-8), PP, etc. Heat insulation effect / 3 hours: 61 ℃, 6 hours: 44 ℃ Cold insulation effect / 3 hours: 8 ℃, 6 hours 10 ℃