Features: Experience the hydrations convenience with the bites valves. Craft from quality silicones, this bitesvalves features a ergonomic designs. Its designs to fit seamlessly with hydrations pack. Great for outdoor sport enthusiasts of all ages, from adventurers to hiking person. This hydrations pack bladder rubber mouthpieces ensures you staying hydrated effortlessly. Specifications: Materials: Silicones Color: As The Picture Shows Package Weight: approx.20g Styles Optional: 2 Styles are Available as Shown in the Picture. Size: approx.13cm/5.12in (More Size Detail, Please See Picture.) Note: Please allow 1-2cm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks! Package includes: 1Pc Bites Valves Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store