Description:1. Material: The fuel line spring hose clip is made of 304 stainless steel with a polished surface, and good impact .2. Advantages: The spring hose clamp has a smooth surface, protects the hose surface, is lightweight, and is good for sealing the hose against fluid loss.3. Application: The tubing spring clamp is suitable for fastening and connecting various pipes, such as fuel or silicone hoses, water pipes and air pipes. They are also good for oil and water pipes for most cars, motorcycles , scooter , ATV, snowmobiles, equipment pipes and general household hoses.4. Note: Measure the max OD of your hose. If the max OD of the hose is within 12mm, it is recommended that the spring hose clips be selected to be 1-1.5mm smaller than the outer diameter of the hose. If the OD of the hose is greater than 12mm, the hose clamp should be selected to be 1.5-2mm smaller than the outer diameter of the hose.Specification:Material: 304 Stainless SteelFinish: PolishingFit Hose Outer Diameter: 19.5 - 20mm / 0.77" - 0.79"Nature State Inner Diameter: 18mm / 0.71"Max. Opening Inner Diameter: 19.5mm / 0.77"Steel Thickness: 1.8mmPackage Content: 20pcs x Single Wire Fuel Line Hose Clamps