Feature:* durable and practical to use * Fits all standard mouth 1.8" diameter water bottle, includes 12, 16, 18, 21, and 24 oz water bottles.* Note: Please measure the diameter of your water bottle before purchasing. We are not responsible for the wrong size of the lid ordered without being measured by customers.* Quality: This bite valve cover comes with a sealed silicone gasket and 100% BPA free.* Long Lasting: Sturdy and stylish, built to last. Easy to clean, hand wash only.* Easy to Use: One-handed operation, bite valve design, simple and convenient to drink both on the go, at work, at home and in the car.* Change the style and functionality of your water bottle with a new lid or keep a spare one on hand in case you need to replace yours. Specification:* Material: PP+AS* Color: Black (as shown in the picture)* Quantity: 1 pcPackage List:1 * Bite Water Bottle ValveNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.