The product in the image is Würth Brake Cleaner. It is an aerosol spray designed for cleaning and degreasing brake systems.
It is used for fast and effective removal of soot, grease, brake dust, and oily residues. 
The cleaner is residue-free, colorless, and acetone-free. 
It is available in various sizes, including 500 ml and 700 ml. 
The product is compatible with paints, plastics, seals, and rubber.