Thermos Vacuum Insulation Baby Straw Mug Ffh-290st Blue Review Posted by RoyalDessert March 28, 2018 in Toddler Cups From 9 months: Age. Also safe in going out, it is not leaking and closed snap! Thermos structure dedicated cold storage, straw type. “Please do not leave the water body ※” washable OK I have not included the spout of training mug type. Baby Products Feeding Solid Feeding