600ml/21OZ Thermal Coffee Mug with Straw Double Wall Insulated Sublimation Tumble Leakproof Water Thermos Portable Coffee Cup Product Information: Color: Black,Gray white Capacity: 600ML Size: 9*19cm material:316 stainless steel inner+304stainless steel shell+ Food Grade PP and Silicone ​​​​​​​ Feature: 1.316 stainless steel has strong corrosion resistance, safety and stability, no odor, tea, coffee, milk, juice, wine, etc. can be used with confidence 2.Double drinking port design, silicone straw port, drinking water more calmly. Drinking water directly at the outlet is more enjoyable 3.5-Layer thermal insulation process design, the water temperature is more durable,cold and hot insulated 4.Food grade silicone seal , tight and leak proof 5.high quality with Fine workmanship,good hand feeling 6.Good to meet the needs of different scenarios, Business office, outdoor travel, are very suitable 7.A great choice as a gif for friends, classmates and family.