The Karcher 3 in 1 Stone and Paving Cleaner is a versatile formula that offers active dirt dissolver for faster and more efficient cleaning, reducing re-soiling and keeping your terrace or garden wall clean for a long time. It also provides wind and weather protection for the perfect care of stone surfaces. The cleaner contains surfactants that are biodegradable and uses highly efficient natural ingredients. The bottle is made from 45% recycled material, and it comes in a 1L size.