Description: Turns a variety of water bottles into a hydration system One way valve Bottle mouth adapter, leakproof design Easy to use, you can drink water without having to take the bottle out of your backpack. The drinking water pipe adopts food grade TPU polyether, food grade suck tube, clean and healthy Suitable for trekking, cycling, fishing, climbing, hiking, hunting, rafting, canoeing, boating, kayaking, etc. Specification: Material: TPU, PVC, Food Grade Silica Gel Length: 109cm Package Includes: 1 Piece Water Bottle Hose Note: The size is measured by hands, please allow minor error of measurement, thank you The color may vary slightly due to screen / display contrast settings