Simply wipe the laptop area where you wish to place the laptop holder. Let the area dry again. Then put the 3M double-sided adhesive on the laptop and press, leave it for a few minutes. Now you are ready to go. First, you open the high stand, so it becomes a high angle. To use the lower angle, you retract the high stand and leave the low stand up. The laptop holder will not leave marks or other residues on your unit. It provides you with easy and simple use. At the same time, it can bring you relief and comfort to your sore wrist, your neck, and your back.