• Package Content: 5 x Flow Control Hose Clamp. For Tube Outside Diameter: 3-4mm/ 1/8" - 5/32".
• Material: Hose clamp is made of high quality POM plastic, good elasticity and strong clamping force.
• Unadjustable Tube Clamps: Used for shutting off and open the liquid. Ideal for brewing beer, wine siphon process control.
• Note: If you want the clamp to have a good effect, the tube using the clamp must be a flexible tube.