Fleet Locks, Inc., introduces simple, affordable protection for a truck's fuel, engine and fuel cap -- this fuel cap lock is a one-piece, heavy-duty aluminum bracket that secures the fuel cap. It's easily installed and removed in just seconds. This fuel cap lock has a heavy-duty aluminum door that is secured with a strong cam bar lock. The door hinge is tamper-proof and cannot be removed. The edge of the door fits into the housing for added security. Two keys are provided. Two self-adhesive gaskets are also included to prevent noise and vibration if the lock is used while truck is on the road.