Generic Unbreakable 500ml Vacuum Flask Set With 2 Cups

Insulation safety range--Withstand the repaid temperature change of the water from the -5 to 150 degree.No chemical leaching or metallic taste--Made of high boron glass liner, you won't worry about the toxic chemical or heavy metal in your water. Healthy and Useful Vacuum Flask Travel Mug. This vacuum bottle belongs with you