we could supply such sisal buffs from 40mm to 800mm for the dia-meter and till now we are the only one company who can produce European standard section polishing buffs (FULL DISCS OUTSIDE AND TRIANGULAR SECTION INSIDE ) in china but our price is so nice comparing any European suppliers.generally the three kinds are as follow: Disk polishing buff: for polishing cutlery and flatware... Bias polishing buff: suitable for polishing stainless steel article,such as knives.scissors... cord polishing buff: in use on automatic machinery for buffing and finishing cutlery and flatware... they are so hard and strong and very suitable for polishing and for the specification it is up to buyers option, such as size. width.dia-meter.thickness.hole type...