High-Quality:The water bottles are BPA-free and made of standard 304 Stainless steel,In anti-oxidation and corrosion resistance to protect the water bottle from oxidation and peculiar smell, BPA free and easy to clean. Keep Heat and Cold:Cute water bottle is double walled and vacuum insulated, which keeps your favorite beverage cold for hours,will ensure that a child's beverage of choice maintains its temperature for many hours to comeBut you must make sure lid is tight. Multi functional : Screw top design for our stainless steal thermos.ECO friendly. has it's own cup can keep you hydrated.leak proof - this reusable water bottle replaces many single use plastic water bottles. Portability Size:Vacuum insulated water bottles compact and lightweight design 350ml (12oz) Size:18*7 cm! Take this practical portable water bottle for your purse or lunch bag. The Thermos have a lovely color is dishwasher safeBut We recommend hand wash our vacuum sealed water bottles for keeps the bottle color.