Features: UNIVERSAL BITE VALVES. These bite valve replacement mouthpieces are compatible with most brands of hydration bladders and outdoor water reservoirs. ONE-PIECE DESIGN. Constructed with a single-piece structure for reliable sealing and leak prevention, allowing worry-free use during outdoor sports activities. QUALITY MATERIAL. Made from high-quality silicone, non-toxic and safe for use. Easy to clean and helps extend the life of your hydration system by replacing only the damaged part. EASY TO REPLACE. Designed with 90-degree and right-angle configurations for convenient drinking during biking, hiking, climbing, and other outdoor activities. ON-OFF CONTROL. Each mouthpiece features an on-off valve to prevent leakage and allow easy control when drinking. Specifications: Material: Silicone Type: Bended Mouthpiece; Straight-in Mouthpiece 90-Degree Bended Size: Approx. 5.4x4.3cm / 2.13x1.69in Straight-in Size: Approx. 6.8x2cm / 2.68x0.79in Color: As shown in picture Weight: Approx. 8-9g Note: 1. Please allow 0-1cm error due to manual measurement. Ensure you are comfortable with this before purchasing. 2. Due to differences in monitor displays, the picture may not reflect the actual color of the item. Package includes: 1 Piece Hydration Bladder Mouthpiece