Made of high quality aluminum alloy, Light weight but strong enough to bear 80 kg Good tool connect car body and roof, convenient for loading and unloading baggage, also can be used to decorate your car looks more off-road Put the rubber strip behind the hardtop, place the bottom of the ladder on the rubber strip. Put the included squares on the edge of the roof, align the hole position of the ladder with the hole position of the squares then fix them with screws. Easy install with minutes no need drilling
