Flex-Straw is a No-Spill silicone straw that is easy to use, clean, and assemble. Colors may vary. You will receive one of the following sets: Blue & Red, / Pink & Purple, / Yellow & Green, / Aqua & Orange. Allows your child's palate and teeth to develop naturally. Helps baby transition from sippy cup drinking to straw drinking Wash prior to initial use and after subsequent uses. Easy clean with warm, soapy water. Rinse and dry thoroughly. Also safe for top rack of dishwasher. 12 Months + / Dishwasher safe