Features: RELIABLE MATERIALMade of silicone material, which makes it an ideal mouthpiece replacement for your water bottles. (Note: rinse it with water and dry it before use, will make it more convenient for you to use.) EASY TO INSTALLEasy to install, all you need to do just take the old bite valve out from your water bottles, and push the new bite valve replacement up to outside after cleaning. LEAK PROOFThe precise size design can perfectly fit the bottle, which of sealing and not easy to leak. Designed to make your water bottle more durable, silicone bite valve is compatible with it. WIDE APPLICATIONFits the water bottles including its 20oz, 26oz, 32oz, 36oz, 1 bite valve replacement for 60 days, size of bottle mouthpiece valve about 2.79x3.81cm/1.1x1.5inch WHAT YOU GETYou will get 4pcs bottle mouthpiece valve. After removing one, the rest can be kept clean and stored in the full package. This quantity will allow you to replace the bite valve on your water bottles and extend its life. Specifications: Type: Bottle Mouthpiece Valve Material: Silicone Color: White Size(D*H): About 2.79x3.81cm/1.1x1.5inch Package Included: 4pcs x Bottle Mouthpiece Valve Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.