the mass replacement bite valve set for camelback eddy kids water bottle 8pack (4 green & 4 sky blue) the mass <b>compatibility</b><br> ✔ compatible with camelbak eddy kids straws and bottles<br> ✔ 2019 and earlier camelbak eddy kids bottles<br> ✖ not compatible with camelbak eddy, eddy+ kids or eddy+ bottles<p> <b>instructions</b><br> 1. pull out the straw from the bite valve <br> 2. pull out the bite valve stem from cap<br> 3. match the same direction to the snifting valve<br> 4. put the bite valve into straw cap flip<br> 5. pull out the stem from the opening<br> 6. press the bite valve opening for check<br> you also can read the instructions picture on our product page. <p>