【Instructions】: 1. Pull up the backrest on the front seat of the car, hang up the fixing ring, and then press down the backrest. 2. If it is hung on the steering wheel, just put the fixed loop on the steering wheel. 3. Adjust the height and angle of the desktop to the most comfortable position. 4. Tighten the desktop angle adjustment handle, and make sure that both sides are tightened. 5. Before placing items on the table top, press the table hard to check the firmness of the table top.