j.carp on-off bite valve with 5 color mouthpieces, pack of 6 j.carp <b>use this pack 2 mouthpiece to extend the life span of your hydration bladder bite valve</b><br><br>a new 2 pack bite valve mouthpiece replacement kit, a great accessory for any sports enthusiast. it's easy to use, easy to clean and works great. <br/><br/> this hands-off hydration valve ensure you stay hydrated while focusing on your sports efforts. <br/><br/> two color selections:comes with two colors for your selection: black, or light blue.<br/><br/>it the valve works with a simple bite and sip and then seals itself to avoid drips. <br/>