Foldable & Space-saving: Compatible with all 15.6-inch to 10-inch notebooks. 4mm thick, convenient for storage when it folds up.Ergonomic Design: Excellent laptop riser to fit your eye level as well as the angle for reading and typing, helpful to relieve pains in the shoulder and waist.Thoughtful Design & Material: Made with aluminium-alloy with a hollow design, it creates air ventilation which is helpful on heat dissipation but keeps strongness, plus the advantage of light-weight (300g).Stable & Solid: Triangular structure makes it reliable. Rubber anti-skid pads and protective hooks protect your laptop from scratching and sliding.