PRP lap belts are Built for Off-Road! This 3" belt includes a Ratchet Mechanism so you can winch down the lap belt as tight as it can go, making the driver extra secure in the seat. Great for extreme off-road racing where the driver is typically bouncing around most of the time. This lap belt can be switched out with the lap belt in an existing harness, or check out PRP's 5.3 Harness with Ratchet Lap Belt for a complete harness.