Premium Silicone Bite Valve Replacement: Crafted from silicone, these bite valve offer exceptional durability and elasticity. Free from odors and harmful substances, they a soft bite for easy sipping and healthier hydration during your outdoor activities. Comprehensive Set: Each package includes six silicone bite valve , complete with an inner post. This ample quantity allows for regular replacement, helping you maintain optimal functionality of your hydration system over time. Effortless Installation: Replacing your bite valve is a breeze with these . Simply detach the old valve and insert the your hydration pack's drinking tube-no modifications needed. Enjoy a hassle-free setup to continue your adventures. Universal Fit for Hydration Systems: Designed to fit a wide range of hydration bladders and reservoirs, these silicone nozzles are compatible with most and types, including 360-degree rotatable and on/off bite valves. Ideal for biking, running, hiking, and more. Enhanced Outdoor Hydration Experience: a reliable and comfortable drinking experience on any adventure. Whether you're cycling, jogging, or exploring the great outdoors, these bite valve replacements are the perfect upgrade to your hydration pack. Colour:Blue & Red & Black Material:Silicone Package Contents: 6 * silicone bite valve Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.