... for a clear, non-streak finishFeature :1. It can clean the space hand can't reach,no harm for electronics precision ... cloth, never leaving any batting while polishing.Smooth, never scratch the Lense or Camera.4. Transparent, Non-toxic cleanser, never do ... cleaning lasts a very long time.Usage :Shake up the cleanser, keep it the distance of 20cm or 30cm from LCD screen. Spray ...