design that folds up. Transportable and simple to store. Allow for a 6-level height adjustment. 5.5–15.5 cm movable. Laptops up to 15.6 inches are supported. Use materials made of aluminum alloy. integrated aluminum structure made of anodized sandblasted alloy. anti-scratch 3D surface protection. It is secure, cozy, and won't cause hand pain. Use a silicone pad that is non-slip. There is no slipping or falling of the protective bracket. structure for floating heat dissipation. Because the back is fully suspended and unhindered, computer ventilation is improved.