![MIRA Stainless Steel Water Bottle | Vacuum Insulated Metal Thermos Flask Keeps Cold for 24 Hours, Hot for 12 Hours | BPA-Free One Touch Spout Lid Cap (24 oz (710 ml, 0.75 qt), Robin Blue) - Walmart.com MIRA Stainless Steel Water Bottle | Vacuum Insulated Metal Thermos Flask Keeps Cold for 24 Hours, Hot for 12 Hours | BPA-Free One Touch Spout Lid Cap (24 oz (710 ml, 0.75 qt), Robin Blue) - Walmart.com](https://i5.walmartimages.com/asr/55369a52-1fb0-44e5-b912-2bfe77e2ee4a_3.e2ad9bceb635a415a27d8b9b21192eae.jpeg)
MIRA Stainless Steel Water Bottle | Vacuum Insulated Metal Thermos Flask Keeps Cold for 24 Hours, Hot for 12 Hours | BPA-Free One Touch Spout Lid Cap (24 oz (710 ml, 0.75 qt), Robin Blue) - Walmart.com
A thermo flask is a household item that is used to keep things warm or cold for a long time. What is the use of silvered wall in thermo flask?
![The Better Home 1000 Stainless Steel Insulated Water Bottle 1 Litre | Thermos Flask 1 Litre+ | Hot and Cold Steel Water Bottle 1 Litre | Pink (Pack of 1) : Amazon.in: Home & Kitchen The Better Home 1000 Stainless Steel Insulated Water Bottle 1 Litre | Thermos Flask 1 Litre+ | Hot and Cold Steel Water Bottle 1 Litre | Pink (Pack of 1) : Amazon.in: Home & Kitchen](https://m.media-amazon.com/images/I/51SdjMJPFPL._AC_UF894,1000_QL80_.jpg)