Features: 1. 4-Pack Silicone Bite Valve Sleeves – Each sleeve includes an inner post, designed to replace worn or leaking bite valves on most hydration bladders and reservoirs. Compatible with Packs Hydraulics water bags and similar models. 2. Premium Silicone Material – Made from high-quality, durable, and elastic silicone. Odor-free and non-toxic, offering a soft bite feel for comfortable sipping and healthy hydration. 3. Leak-Resistant & Secure Fit – Ensures a tight seal to prevent leaks, providing reliable performance during active use. 4. Easy to Install – Simply slide the replacement sleeve onto your existing hydration tube for a quick and secure upgrade. 5. Versatile Compatibility – Fits most hydration bladders and reservoirs of various capacities, ideal for cycling, running, hiking, camping, and other outdoor activities. Product Details: These bite valve replacement sleeves are designed to renew your hydration system efficiently. Crafted from flexible, long-lasting silicone, they restore a leak-free seal and deliver a pleasant drinking experience. The set includes four sleeves, each with an inner post for easy installation and broad compatibility with popular hydration brands and models. Specifications: - Color: Transparent-Red - Material: Silicone - Package Contents: 1 set × Soft Bite Valve Sleeves (4 sleeves total) - Note: Only the listed items are included. Slight color variations may occur due to lighting and screen differences. Measurements may have a tolerance of ±1–3 cm.