We designed the NumNum Straw Training Cup and chose a valveless straw with pediatric specialists who understand the challenges and development stages of infants and toddlers to meet their unique needs and motor skills development.
Valve straws may be more leakproof, but they (as well as other bite-to-sip cups and sippy cup tops) create atypical motor patterns that can hinder development. Our short, narrow, and valveless straw was designed to promote proper tongue tip placement and lip closure to help with oral motor skills development and allow for a more consistent flow of liquid to prevent choking or spilling.
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