Two Double Ear Clips are a very affordable choice for use in simple assemblies with both air and various types of fluids. The design provides extra gripping action with the dual ear clipping mechanism, helping you to sustain a consistent pressure on the attached hose. It also enables a better fit that is more precise and exact. The double ears make the hose clips tamper-resistant, allowing for a firmly gripping clamping action once it is completely mounted. With additional rounded edges, your hose is safe from potential damage as well, making this Two Ear and Ear Clips of the most versatile and preferred clips for hose assemblies in almost any . Specification: Band: St 34 steel Finish: Silver-white Cr3 Zinc-Plated Size Chart: Size: 17-20mm Package Includes: 10 x 17-20MM Double Ear Hose Clips Note: How to select the correct size? - Measure the OD of your application (OD = Outside diameter) - Select the Double Ear Hose Clip that suits your OD accordingly Note: Please be careful that when you insert the connector into the hose the hose OD doesn't increase. How to apply the Double Ear or Single Ear Clip? - Safely position the hose / hose clip - You can either use a Front Ear Pincer or a Side Ear Pincer - Front ear pincer = If you have plenty of room and are able to be face on - Side ear pincer = Is useful if room is restricted, you can use the side of the pincer - Once ready firmly squeeze the pincer tightly....... Done! How to select the correct size Double or Single Ear Clip? - Accurately measure the OUTSIDE diameter of your hose / application - Select the Ear Clip which size range matches the OD of your hose - Watch out for the hose OD increasing when you push in your application - Example: If your hose is 5mm OD, select the 5-7mm Ear Clip