Check the listing for details. 1/8" ID Brass Sleeve Ferrules 10PCS Compression Fitting Assortment Kit. Condition: New. Listed at 13.99 USD. Sleeve ferrules are usually used to quickly and simply connect air, water, and oil pipelines; they are suitable for connecting and fixing nylon pipes, copper pipes, aluminum pipe joints, etc., and are often used in fuel and gas systems.SpecificationColor: Gold ToneMaterial: BrassFit Tube OD: 2mm / 0.08"Size: 3 x 5 x 5.5mm / 0.12 x 0.2 x 0.22 Inch (ID*OD*H)Package List: 10 x Sleeve FerruleAdvantageGood brass material, strong and not easy to wear, has corrosion resistance, and high-pressure resistance, and can be used in many different types of environments. The surface is smooth and burr-free, the bite is tight, and it is not easy to get stuck or leak oil.InstructionFittings are easy to assemble without welding, flaring, or deburring and can be connected directly to copper, brass, aluminum, or plastic tubing.