Clear Screen concentrate is a highly concentrated cleaning additive for the windscreen washer unit. It removes dirt and smearing films from the windscreen.APPLICATION Clear Screen concentrate rapidly removes dirt, mineral dust, exhaust gas residues and rainwater deposits from windscreens. Oil soot, insects, silicone, grime and traffic film are removed in seconds and wiper blade action is smoothed. Tolerant to paintwork, rubber and plastics.INSTRUCTIONS FOR USE - 1) 30ml treats 3.0 litres of water 2) Twist off top 3) Add contents of bottle to windscreen washer reservoir 250ML 1) Hold bottle upright, unscrew cap a quarter turn 2) Fill dosage chamber by squeezing bottle 3) Unscrew cap and empty chamber into windscreen washer reservoir20 LITRE 1) Decant product from drum to measuring device 2) Poor into windscreen washer bottle reservoir Benefits Cuts through road grime and insect splatter Anti-smear properties Concentrated formula for less waste Measuring chamber on 250 mL pack allows correct dosage every time Won't induce stress cracks in Polycarbonate headlight lenses Improves the efficiency of the wipers. Provides clear vision in seconds