Listings provide age guidance from infant/toddler training cups (about 6 months and up) through toddler and child sizes. Typical examples shown are 6 months+, 12 months+, and 3 years+.
Typical spill-control features include weighted or flexible straws for drinking at angles, one-way or valve-equipped straws, flip-top lids that cover the straw, and lids marketed as leakproof or spillproof.
Common lid and straw options include flip-top lids, straw lids, weighted or flexible straws for any-angle drinking, and straws with one-way or valve mechanisms for spill control.
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