For the Surface Laptop 13.8", Built in collaboration with Microsoft for exceptional form fit and function, Conveniently and easily attaches to the Surface Laptop’s magnetic frame, Reversible - one side has a matte finish to reduce reflections, glare and fingerprints. The other side is glossy and provides a clearer view of the monitor, Limited viewing angle narrows the field of vision to ±30°, helping keep the information on your screen private and reducing the chances of a visual data breach, Blue light reduction filters out harmful rays by up to 52%, easing eye strain, Touch and Surface Pen enabled