Aluminum alloy material, high strength, corrosion resistance, and it is easy to clean. Secure and sturdy: raised front edges hold the laptop in place while in a tilted position, rubberized non-slip pads support your laptop in place and prevent unwanted scratches to your laptop. Ergonomic design, elevates your laptop to the perfect eye level and prevents you from hunching over your screen, preventing neck/shoulder strain. Detachable, easy to install.