【Foldable Hook Design】The car step stool has a U-shaped hook latch, which is easy to use. Simply hook the steps to the U-shaped latch on the door and you can easily climb onto the roof of the car. And store luggage, clean the vehicle. 【Emergency Tool】 There is a stainless steel safety hammer head on the front of the folding car step stool, which can be used to break the car window in an emergency, allowing you to quickly escape from the car in an emergency. 【Anti-slip】The surface of the car door step stool has a raised design, which increases the surface friction and has an excellent anti-slip effect. The side protection protects the vehicle's paint. 【Compatibility】RV steps, suitable for most U-lock models, such as SUV, RV, JEEP and sedan. The self-locking platform allows for quick loading and unloading of roof luggage when camping or outdoors. 【SECURE LOADING CAPACITY】The vehicle hitch step is made of aluminum alloy, lightweight and strong, can support 185 lbs, helps you load and