vacuum flask 1.stainless steel material 2.capacity:350,500,750,1000 3.double wall 4.keep liquids 24hours with cool or hot

vacuum flask1.stainless steel material2.capacity:350,500,750,1000ml3.double wall4.keep liquids 24hours with cool or hot

5.any color is available

high quality and hot sell stainless steel vacuum flask