Make preparing milk on the go stress-free and smooth! Do you ever struggle with preparing milk when you're out and about? For example: ・The hot water cools down and the milk doesn't dissolve. ・It's difficult to pour the hot water from your thermos, and you end up getting wet. These situations can make your baby fussy and ruin your outing (tears). If you've had these frustrating experiences, we recommend this product. 【Keeps the water temperature perfectly】 With its double-walled vacuum construction, this bottle keeps the water temperature perfectly! You won't have to worry about the milk not dissolving when you're making it. You can prepare the milk immediately when your baby starts crying from hunger. 【Easy-to-pour spout for baby bottles】 This stainless steel bottle is designed specifically for preparing formula and has a spout that's easy to pour into baby bottles. You can quickly make milk when you need it. 【No worries about the lid opening and getting your bag wet】 It has a lid lock function for safe carrying. This prevents the lid from opening in your bag and getting everything wet. ※Do not drink the hot water directly as it is dangerous. 【Product Specifications】 Capacity: 500ml Size: Approx. Diameter 65 x Height 227mm Heat retention: 70 degrees Celsius or higher (approx. 4 hours) 【Quality Indication】 Inner bottle/mouth: Stainless steel Body: Stainless steel (acrylic resin coating) Cap/Lid: Polypropylene Packing: Silicone Bottom plate: Elastomer resin ※Do not use in microwave ovens, automatic dishwashers, or dish dryers. ※Please purchase only if you understand that this is a used item. ※Will be shipped in simple packaging.