Steel Fuel Rails/Lines and A/C Lines Stopper Kit. Use to seal steel lines once disconnected. Prevents fluid leaks and contamination during service. Use with all automotive fluids. Suitable for Fuel Rails and Lines. Flare Type Steel Brake. Fuel and A/C Lines. Banjo fittings on Brake. Power Steering and Transmission Cooler Lines. Suitable for Fuel Rails and Lines, Flare Type Steel Brake, Fuel & AC Lines, Banjo fittings on Brake, Power Steering, & Transmission Cooler Lines. 4 x Steel Line Stopper. High quality made Product, reliable and harmness. Pleasant light blue color makes it easy to be accepted. You will enjoy it. This product is firmly constructed so you don’t need to worry it will be broken or damaged during your use. 8MILELAKE is a registered brand in US. We dedicated to providing the highest quality auto repair tools and accessories on the market. All products are brand new, unused unopened and undamaged item in original retail packaging. All items will be securely packaged.