All our Diamond Polishing Pads are made by high quality controled manufacturers. These are made with top quality diamonds and resin. The pads are velcro backed with grit numbers burned into the velcro. Our pads are more flexible and more aggressive than any others. We have all type of grits. And we have lots of different quality and pattern pads. We do sell individual pad and whole set both way. You can save the money and get superior job performance with our pads.