Key Features: 1. Wide Compatibility: Designed to fit most hydration bladders and reservoirs, including popular brands like HydraPak and similar systems. The universal design ensures easy integration with a variety of hydration packs, making it a versatile choice for outdoor enthusiasts. 2. High-Quality Silicone: Made from durable, odor-free silicone that’s soft to bite and free from harmful materials. It offers lasting elasticity and a comfortable drinking experience during any activity. 3. Easy to Install: Replace your old bite valve in seconds—just remove the worn valve and slide the new one into place. No tools or tube modifications required, so it’s a hassle-free upgrade for any hydration system. 4. Complete 4-Pack Set: Includes four replacement sheaths with inner posts, so you’ll always have a spare on hand. Perfect for regular maintenance to keep your hydration system clean and functioning well. 5. Versatile Use: Works with rotating 360-degree valves and on/off style valves alike. Ideal for hiking, biking, running, camping, and other outdoor adventures where reliable hydration matters. Product Details: These bite valve replacements are crafted from premium silicone for a soft, comfortable bite and long-lasting performance. Designed to fit most hydration bladders and drinking systems, they install easily without tools—simply swap out the old valve and you’re ready to go. The set includes four sheaths with inner posts, making it convenient to refresh your hydration pack regularly and ensure a clean, reliable flow of water during all your outdoor activities. Specifications: - Color: Blue - Material: Silicone - Package Includes: 4 × Bite Valve Replacement Sheath (inner posts included) - Note: Only the items listed above are included. Slight color variations may occur due to lighting or screen differences. Product measurements may vary within 1–3 cm.