foldable style. Transportable and simple to store. Allow height adjustment on six levels. 5.5–15.5 cm movable. support for 15.6-inch laptops. Pick up some aluminum alloy. Anodized sandblasted alloy aluminum structure integrated. anti-scratch 3D surface coating. It is secure, cozy, and won't damage your hand. Use a silicone pad that is non-slip. There is no slickness, no slipping, and no falling with the protection bracket. Structure for dissipating heat that floats. It is better for computer ventilation because the back is fully suspended and open.