Can a 3 year old use this as well?

Our 3 year old granddaughter uses this everyday for school.

What would happen if I put a hot liquid on this?

Hot liquid is fine. The thermos will keep the hot water hot for a long time. However, the straw will be bent up due to the hot water. It will not retain a straight shape. Remove the straw if you are going to store hot water.

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❄️ Sip Smart, Stay Cool — The Ultimate Kids’ Hydration Upgrade!

STAY CHILL ALL DAY - Keeps drinks cold for a full 12 hours—no more lukewarm sips at work or play.
FLIP TOP CONVENIENCE - Easy one-handed flip-top cap for quick hydration on the go—because time is money.
CLEAN SIPPING ALWAYS - Integrated hygienic straw ensures every sip is pure and germ-free.
NEXT LEVEL INSULATION - Double-wall vacuum design locks in freshness and blocks out heat like a pro.
KID APPROVED DURABILITY - Stainless steel build that’s tough enough for your little one’s daily adventures.

The THERMOS FUNTAINER 12 Ounce Stainless Steel Vacuum Insulated Kids Straw Bottle in Bluey features a durable double-wall vacuum insulation that keeps drinks cold for up to 12 hours. Its hygienic built-in straw and flip-top cap offer convenient, germ-free sipping, making it the perfect stylish and practical hydration solution for active kids.

Model Number	F4105BY6
Package Dimensions	18.4 x 7.4 x 7 cm
Material	Stainless Steel
Color	CQCaa-523
Special Features	12時間保冷。, ダブルウォール, 二重壁。, 衛生的なストロー。
Cap Type	フリップトップキャップ
Package Weight	0.23 Kilograms
Batteries Required	No
Batteries Included	No
Material Care Instructions	Machine Wash
Brand Name	サーモス(THERMOS)
Capacity	12 Fluid Ounces
Item Weight	0.5 Pounds

THERMOS FUNTAINER 12 Ounce Stainless Steel Vacuum Insulated Kids Straw Bottle, Bluey

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