material Easy to installaton Light weight and durability This is High quality of Metal + Plastic material Quick : Maintains pressure on the front or rear brakes to keep the vehicle on a hill or at the starting line. Easy to Use: This high-quality solenoid valve controls both the front and rear brakes, making more convenient. lock kit includes a heavy-duty pushbutton switch, a switch bracket, a coiled cable, a rebuildable line lock valve, a fuse holder, and an indicator light. Type: Front Brake Line Lock Kit Application:Used for drag racing to lock the front tires of your vehicle. Suitable for 12-24 volt electric systems. It can handle pressure spikes up to 1000 psi (pounds per square inch). Colour:Black Material:Metal+Plastic Package Contents: 1 x Front Brake Line Lock Kit 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection 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.