Stand 4 is specifically designed for touch products. It can be adjusted to four different positioning angles. The non-slip leg cover design prevents movement when you perform touch actions. The large surface area design can disperse the force of pushing against the screen, thus the screen would not tip over. It is an improvement from traditional three point stand's drawback of not being very stable. For users who have 7" and larger tablet or touch screen, Stand 4 can provide a much more stable experience.