Dimension: 21.26 x 13.39 inch/L x W. Compatible with iMac 24 inch; compatible with Lenovo Ideacentre 23.8; compatible with HP Pavilion 24/Flagship 23.8; compatible with Inspiron 23.8, compatible with Dell P Series 24; compatible with Fast Elite 8300 FHD 23; compatible with Sceptre 24; compatible with Acer Aspire 23.8 /XFA240 bmjdpr 24; compatible with ViewSonic 24 and diagonally measured 23, 23.6, 23.8, 24 inch 16:9 widescreen desktop PC LED monitor. Please measure your modiagonal dimension before purchase. ^^ Protects your eyes by filtering and curbing 99% harmful UV. Anti-blue light between 420nm - 460nm can be reduced by 45% for HEV protection. Effectively reduce eye strain and fatigue caused by the UV and blue light. ^^ Made of Acrylic. It can effectively prevent screen from dust, fingerprint and scratches. Suitable for office / home OL, gamer and programmer. ^^ Ultra thin to 0.05 inch of 95% clear transparency, which will not darken your laptop screen, keeping the original screen brightness. ^^ Easy to install, just remove the surface film on each side and hang on the monitor screen.