Designed to fit past and current models of the Microsoft 13.5-inch Surface Book/Surface Laptop - Privacy filter darkens screen to protect sensitive data; Clear viewing angle of 60 (+/-30 ) - Filter won't interfere with webcams/sensors/closing the lid; Touchscreen enabled - Reduce eye strain by blocking up to 51% of blue light; Reversible laptop computer privacy screen with anti-glare matte sides - Light transmittance close to 60% - Attach the monitor privacy shield with included mounting tabs