These visually appealing fabric light covers filter out harsh glare to create a more calm and soothing environment. They can also reduce headaches and eye fatigue. Fits most 2' x 4' ceiling light fixtures. The fire-resistant fabric conforms to fire safety standards. Full coverage with no gaps. Easy installation – no tools required. 10 extra-strong magnets help prevent the fabric from sagging. Subdue overwhelming fluorescent and LED light bulbs! Reduce eye strain and minimize annoying light flickers! Pack of 4 light filters.