The set contains: 16 polishing sponges (3 inches), 3 M10 drill adapters, 3 suction cups, and 3 wool pads. For refining bare surfaces, cleaning, and removing rust. Good material: Made of high-quality sponges and wool wax with strong absorbency, wear resistance, high strength, and good plasticity. After use, rinse the used sponges with warm water and let them dry on the radiator. Different types of polishing sponges: Thanks to the many sponges, you can polish at different stages. The orange ones are for coarse polishing and polishing. The soft and yellow sponges are perfect for polishing small details. The black and white sponge gives a shiny surface without leaving any residue. Bohradapter: High-quality drill adapter for connecting the electric drill, polishing pad set, Suitable for any M10 drill, cordless screwdriver, polishing machine and conventional lathe.