There are different types of cleaning and polishing compounds to go specifically with the different buffing pads and a drill chuck arbor for mounting the pads onto your cordless/corded drill. Ideal for removing scratches and polishing hard materials such as steel, iron and stainless steel 2pcs x polishing compound 3pcs x medium buffing padsteel 1pcs x 6mm (1/4") shank arbour Black Emery – A course compound used for cutting and preparing materials, to be buffed on aluminim, stainless steel, wood. Brown Tripoli – Used for cutting and removiing scratches from aluminum and stailess steel. Can bring out a high luster even on wood. White Diamond – Used for removing deep scratches from soft metals General Green – Used to finish stainless steel to high luster mirror finish and for other hard metals Deep Brown – Used item which need deep grinding, to remove deep scratches All-purpose Blue – Used for all materials, can even be used even on plastic Red Rouge – Used for buffing soft metals like gold/silver to a brilliant high lustrous finish & will not scratch the finest or softest metals. Polish gold, silver, brass, copper & nickel to a mirror finish.