Pierre d’Argent is a cleaning stone adapted to all kinds of surfaces. This universal cleaner takes care of all your cleaning needs. It can also polish surfaces after cleaning and leaves a protective film to stop dirt from building up again. With this cleaning stone, you won't need other cleaning products or chemical products! You can use it for cleaning indoors and out, so you won't need to decide which product to use for different jobs… Pierre d’Argent has the Ecocert label and was voted the Top Ecological Product in 2014. It has no impact on health or the environment. Because this cleaning stone is made from totally natural and biodegradable products. It is the ideal natural and ecological product due to ingredients with no impact on the environment or yourself!