What is the item in our daily life which is most similar as it in the space?
Yes, show me your vacuum flask in hand.
Product Name: 550ml Blue Double Wall Vacuum Cup Gradational Thermos Drinking Flask
Product Id: WS-AJ91650E
Type: Double Wall Vacuum Sport Thermos
Capacity: 18.59oz/550ml
Material: Made 100% food grade AISI 304, ABS Lid
Color: Metallic Blue
Technique: Electroplating metal
Use Type: Sport, Exercise
Suggested Users: Adult Male, Adult Female, Children