About This

• Using Medical Grade Silicone, compatible hydration pack drink tube bite valve
• Easy installation without alteration on your backpack drink tube
• Fits all brands and types of hydration water bladders
• Easy use bite valves with on-off switch, easily control water flow with the yellow lever whick will no leak
• You will receive 2 bite valves , and they will be great hydration pack accessories when camping, hiking, biking, etc., outdoors.