Control to synchronize front and rear brakes. Hold brake pressure on front or rear brakes to keep vehicle stationary on a hill or at the starting line during drag racing. This high-quality solenoid is suitable for use on either the front or rear brakes of your vehicle. Capable of handling pressure spikes up to 1000 psi. Compatible with 12-14 volt electrical systems. Name: Line Lock Kit Type: Brake Lock Condition: New Fitment: Designed for 12-14 volt electrical systems Color: As shown Material: Plastic + Metal Package Contents: 1 x Brake Lock 1 x Switch Accessory 1 x Light Accessory 3 x Screws Note: Lighting effects and display settings may cause slight color variations between the image and the actual item. Measurement may vary by up to +/- 1-3 cm. Package includes only the items listed above; other accessories are not included.