Thermos King Stainless Steel Food Flask, 710ml, Red
Vacuum flask - Wikipedia
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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