Thissippy training strawis compatible withthe.Simply remove the snack lid and replace to transform from snack cup with sippy.The top lid reverses as a weighted suction base to add stability for straw-training and reduces the chance of spills. As your child grows (or when using the sippy spout), you can flip the suction lid to a flat base. Itcan also be used to store our straw for on-the-go, keeping it clean and secure in your diaper bag.The training straw has a middle stopper to prevent your child from removing it, making it the best sippy and strawcup for your little one.

BENEFITS:

• Top lid reverses as weighted suction base for steady drinking when training child to use straw
  
• Suction base flips to flat base when using sippy or with older kids
• Grooves in straw help airflow andstops liquid from squirting
• Middle stopper on strawprevents baby fromremoving it
• Safe for hot or cold beverages
• Easy grip handle that can tether to a strap, car seat, stroller& more
• Mix-and-match system designed for stacking, storing & transporting
• Endlessly reusable & built to last (silicone won't wear, fade or corrode)