Feature:The AN thread is a particular type of fitting used to connect flexible hoses and rigid metal tubing that carry fluid.Made of aluminum alloy material, anti-rust, anti corrosion, waterproof, oil proof, durable in use.Anodized finish for strength and firmness.Having the ability to easily connect flexible lines.Universal application for fuel, water, oil, air line end finisher.Specification:Material: Aluminum AlloyColor: Silver ToneSize: AN4Fit for Hose Max Outer Diameter: 12mm/0.47"Hole Outer Diameter: 15mm/0.59"Hole Inner Diameter: 9mm/0.35"Height: 22mm/0.87"Package Included:4 x Car Hose Finisher Clamp.