Product Feature: The shut off hose clamp is mainly used to clamp the hoses to regulate the flow or shut off fluid flow. The hose clamp can adjust rate of flow with great precision, simple to operate and easy to use. Note: Please confirm the size before purchasing. 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. Specifications: Product Name: Flow Control Hose Clamp Material: POM Plastic Color: Red Overall Size (L*W*H): 30 x 19 x 13 mm/ 1.18" x 0.75" x 0.51" Fits For Tube Outside Diameter: 5 - 8 mm (1/4" - 5/16") Package Includes: 5 Pcs x Flow Control Hose Clamp If you are not satisfied or have any questions with any Kyuionty's products, please feel free to contact us. We want our customers to enjoy a 100 percent satisfied shopping experience.