Brake Locks are for supplemental brake holding and are to be used in conjunction with a vehicle's mechanical parking brake. They perform as operational parking brakes only and are not intended for prolonged parking. There are several brake lock solutions available for single, dual, split, or anti-lock brake systems. Brake Locks are ideal for construction, mining, agriculture, material handling, multi-stop delivery and recreational vehicles. They fit most medium and light duty trucks equpped with a hydraulic braking system.