Proprietary, premium fittings as used by Ferrari, Lamborghini, KTM, and Ducati. Banjos utilize a unique machined channel and sealing surface for leak-free installations. PTFE Dupont 64 Teflon hose. R&D and engineered in the USa. Custom modification available. Galfer USA controls the manufacturing process ensuring the highest level of quality control. Lifetime Warranty. Made in the USa.