Highquality door reinforcement hooks diecast aluminum construction ensures durability and longevity. The sturdy hooks can hold up to 230 kg. The raised surface makes the door more resistant and nonslip, even in the presence of wet shoes, and safer.Multifunctional door pedal 1) easier access to the roof; 2) the pointed part of the door pedal can be used as a safety hammer; 3) can be placed under the wheels to prevent them from slipping in the event of an unstable stop in wet weather; 4) the door pedal can also be used as a temporary telephone when your hands are not free.No damage to the door frame the rotating hexagonal rubber base is designed so that you don't have to worry about paint damage to the mounting points and the thick, highdensity rubber wheels protect the door frame from dents and scratches. It is a compact and portable tool with a foldable hook that does not take up any space in the car and is very easy to use, attaches to the door frame in seconds.Easy access to the roof just pry the door lock, adjust the pillar angle, stabilize the door sill and the hook acts as a mini ladder, making loading and unloading easy; unloading luggage and suitcases on the roof; to facilitate roof cleaning; you can also climb onto the car roof and take a beautiful travel photo. The door board with spikes is a good ladder accessory for roof racks.