This is a short video with manual instruction explaining how to install HEYNER HYBRID windscreen wiper blades on TOP LOCK M style wiper arm. These wiper blades will fit new Mercedes Benz cars e.g A-Class, B-Class, C-Class CLA, CLS, E-Class, GLA, GLC, Vito, V-Class. Thanks to a small adapter these wiper blades can be fitted to all car and vans with “Top Lock M” wiper arms.