Scotch-Brite(TM) Cut and Polish Disc D5 is five discs of strong, durable cut and polish web on a 1/4" shank that provides coverage on larger areas, irregular/contoured surfaces, bar grates, louvers, vents, and tracks. The Cut and Polish Disc is engineered to produce satin or high-luster finishes, cleaning, or light deburring on a variety of metals. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.