Title: Thermos Tumbler
Review: Very Good product. Sturdy and keeps beverages warm or cold for many hours. Only drawbacks are: When it is too full, and you tip to take a drink, be careful because their is no vent and the hot drink will not come out immediately because the air cannot get in to let the beverage flow out slowly. I've gotten burned a couple of times.Secondly, it is NOT spill proof. It leaks if turned on its side. Still for what I needed, a fairly spill proof driving container, it is very good.
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