Vacuum Flask Material:SS201-0.5mm Fashion design,excellence perform,can keep the water 24 hours hot,used in hotel and family Vacuum FlaskMaterial:Stainless Steel 201-0.5mm+PPCapacity:3.0L 4.0L 5.0L Fashion design,excellence perform,can keep the water 24 hours hot,used in hotel and familyFor more information,please feel free to contact us. Vacuum Flask