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Product Description
Learn natural lip movements and step up correctly!
A straw mug with a narrow and soft mouth.
The mug parts can be replaced, so you can smoothly step up from practicing straws to drinking straws and drinking cups.
You can practice sucking with a narrow, oval mouthpiece that fits your small mouth.
This is an air valve that releases the pressure inside the container as soon as the cover is opened, and has a unique valve structure. (Patent registered)
Simple shape with few parts, easy to clean and hygienic.