Function: Fitting Compression can be connected to oil pipes of vehicle and industrial accessories, with good sealing performance to prevent fuel leakage. Made of good quality brass material, waterproof, scratch-proof, good cushioning, durable and long-lasting. Easy to install, a wrench is needed to remove and tighten the brass fitting. Product Dimension: Color: Gold Tone Material: Brass Size: 23.7x9.8mm/0.93"x0.39"(L*W) Fit Tube Dia: 4mm/0.16" External Thread: M6x0.75 Universal design for most vehicles.Ship Content:1 Pc - Brass Fitting Compression Connector