Vacuum Insulation: Our vacuum flask 1 litre provides superior insulation, keeping beverages hot or cold for hours. Crafted from premium stainless steel, this thermosteel bottle 1000ml is perfect for school, travel, or office use. Versatile Use: This hot water flask is designed for all ages and activities. Suitable as a steel water bottle for kids and adults alike, it serves as an exc... https://www.amazon.in/dp/B0BRSW451X?th=1