Specification: Type: AdjustableMaterial: POM PlasticFor Tube Outside Diameter: 6-12mm/ 1/4inch - 1/2inchFunction: Control Liquid Flow & Shutting Off/ Open the LiquidNote: Light shooting and different displays may cause the color of the items in the picture to be slightly different from the real object. Due to manual measurement, please allow +/- error of 1-3 mm. 100percent Satisfaction d: If you are not satisfied or have any questions with any Kyuiontys products, please feel free to contact us with email to get a satisfied solution.We want our customers to enjoy a 100percent satisfied shopping experience.