how does the clay ball works?

the clay ball from SONAX, it around the Europe.  how does the clay ball works?  
clay ball is easy to use. the SONAX ball is a excellent product. 
the clay bar based magic clay bar, and magic clay block. than change to clay bar. 
it is a develop process of the clay bar.  

Highlights & Details

• Ideal for the removal of stubborn superficial dirt such as rust, insect remains, tree resin and tar stains
• Supplement to the proven "P-Ball" for polishing the paint
• Particularly handy and ergonomic
• Cleans without damaging the paint
• For paint and glass surfaces
• Easy to clean by rinsing up impurities with water
• Transparent plastic packaging with Eurohole hooksRead More