Blue Light Screen Protector Panel For 26"/27"/28" Diagonal LED PC Monitor (W 24.80" X H 15.55") (W630mm x 395mm). Blue Light Blocking up to 100% of Hazardous HEV Blue Light from LED screens. Reduces Digital Eye Strain to benefit eye health. For office or home PC's to promote Healthy Eyes for Working People. For 26"-28" diagonal screen.