ITEM NAME:2pcs Hydration Pack Bite Valve Nozzle with Dustproof Cap for Hydration Backpack Description: Replacement piping nozzle for your water bag. Fit for 7.5-8.5mm diameter water pipe. With dust proof cap to keep the nozzle clean. The straight connection to water pipe's outer diameter is about 8.5mm/ 0.33inch. Essential accessory for camping, hiking, cycling etc. outdoor activities. Specification: Material: TPU Color: blue Length: Approx. 8cm/ 3.15 inch Outer Diameter: Approx. 8.5 mm/ 0.33 inch Package Includes: 2 Piece Replacement Piping Nozzle SKU: DMO0012889519165475.With dust proof cap to keep the nozzle clean. Essential accessory for camping, hiking, cycling etc. outdoor activities. People always bought together with.