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 fttings on Brake, Power Steering and Transmission Cooler Lines Installs in seconds colour: blue Material: plastic Package Contents: 4 x Steel Line Stopper Kit Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.