Features: UNIVERSAL BITE VALVES. These bite valves replacement mouthpieces fit for most brands of hydration bladders, outdoor water reservoir, etc. ONE-PIECE DESIGNED. one-piece structure and good sealing, there will be no water leakage, so you can use it with peace of mind, no need to worry about reserve resource when doing sports outdoors. QUALITY MATERIAL. Made of quality silicone, nontoxic, safe to use, easy to clean. No need to replace a new hydration bladder even if the hydration bladder accessories are damaged. EASY TO REPLACE. 90-degree and right-angle designs.Makes it easy to drink water or beverages even during biking, hiking, climbing, etc. ON-OFF CONTROL. Each hydration bladder mouthpiece equipped with on-off control, convenient for you to open and close up, prevent water leakage. 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 Picture Shown Weight: Approx. 8-9g Note: 1.Please allow 0-1cm error due to manual measurement. make sure you do not mind before you bid. 2.Due to difference between different monitors, picture may not reflect actual color of this item. Package includes: 1 Piece Hydration Bladder Mouthpiece