Increase the life of each wiper blade by 3 times . The use is very simple! Lift the wiper and clean it well with the supplied sponge. Pass along the rubber of the wiper, with a regular gesture. Pre-coat the rubber on the windshield wiper with some dish soap or liquid soap to facilitate the operation. | Make wiper blades reusable with precise cutting, patented cutting technology ?Made in Germany? | 1st step: Clean your wipers of any dirt using liquid soap or washing up liquid. | 2nd step: Cut out your wipers with a regular gesture. It's over :) - Restores a clear view, quick and easy to use & protects the environment by reducing waste. | We are 100% confident you will be delighted by the quality and fun of product "Wiper Blades Repair". But, if for any reason you?re not completely satisfied please feel free to contact us immediately for a full refund or replacement.