These microfiber polishing pads are designed to eliminate fine swirls and scratches while taking gloss to a whole new level. Use them with any fine to medium polish to achieve a perfect finish - they are perfect for use with Meguiar's D301 Finishing Wax and work faster and with less effort than traditional foam pads. Optimum's advanced laminated backing not only allows you to use these pads with a rotary polisher, they are also machine washable. We've found these to be the best microfiber pads on the market today in terms of performance, durability, and overall value. We recommend using them on speed 4-5 with a Porter Cable 7424XP or Flex XC3401 VRG, and no more than 1,000 RPMs with a rotary polisher. These are a perfect fit for the factory Flex XC3401 VRG backing plate, or the LC-43-148DA backing plate if used with the Porter Cable. Sold individually.