Drinkware Type Vacuum Flasks & ThermosesMetal Type Stainless SteelThermal Insulation Performance 6-12 hoursProduction Office CupMaterial Stainless SteelShape Straight CupGlass Liner Material Stainless SteelBottle Type VacuumThermos Material Stainless SteelApplicable People MenFeature Eco-Friendly， Stocked