Simple bracket which allows you to leave your rear hatch slightly ajar for ventilation while still locking for security. Simple fitment. Attach to the 'D' shaped portion of the latch and the tailgate locks into the shaft. Reduces condensation when camping and helps keep cool on warm nights! Also useful if you need to leave pets in your vehicle for short periods. Must only be used when stationary, exhaust fumes will enter the vehicle if used with the engine running!