Has higher ceramic content compared to conventional products, improving the polishing performance, and offering 3 times more durability. The accuracy of the finishing surface is improved. Since ceramic powders and oxidation aluminum raw materials are sintered to a natural rubber, less abrasive particles fall off and durability is excellent. Since external finishing is carried out, there is no shaking of the grinding stone. Suitable for burr removal or fine scratches. Suitable for mirror finishing.