Essential Repair Kit: Crimp ferrules easily hide the pipes and increase the service life of your wires, ensuring the normal of your car air conditioning system, and prolonging the lifespan of your car. The air conditioning joint cover set： includes 12 pieces of assorted barrier hose ferrules in 6#, 8#, and 10# sizes, ideal for repairing standard A/C hydraulic hoses. Heavy-Duty Construction: Ferrule fittings are made from alloy steel Zinc Coating, which is durable, and reliable performance in high-pressure applications. Versatile Usage: Suitable for automotive hydraulic crimp sleeves, universal ferrule fittings, and professional heavy-duty A/C hose crimping needs. Affordable and Reliable: A cost-effective solution for hose repair, featuring premium-quality steel crimp ferrules for long-lasting results.