Query:      How does the insert prevent the liquid spilling?
Answer:    By reducing the wave motion caused when the mug is shaken from side to side.

Query:      Is drinking affected by the insert?
Answer:    Drinking is done normally.

Query:      How often should the insert be removed from the mug?
Answer:    As often as necessary for cleaning.

Query:      How long will the insert last, and what happens afterwards?
Answer:    Inserts can last indefinitely and replacement inserts can be purchased separately.

Query:      What is the insert made of?
Answer:    A flexible plastic material designed for food and beverage applications.

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