Review on Grey Foldable Roof Rack Doorstep Hook Accessories for SUV, Truck, and Jeep - CONDOLD Car Door Step with Multifunctional Pedal and Safety Hammer Function, Max Load 440 lbs by Tyrell Rike

The black triangular pieces that fit the inside of the door frame are made of hard, slippery plastic, not rubber as you might think. Other similar products carry your weight under the hook. In this case, you step onto the platform above the hook, which should allow you to go higher, but balance very unsteadily on the high axis due to the hard, slippery plastic, which is the only other point of contact with the vehicle. The plastic end slides from side to side with little weight change, rendering it virtually unusable.