Dual Sided pad save you loads of money. It's 2 pads for the price of one.

The Edge DUAL SIDED 6 Inch Dura Foam Pads a revolutionary Quick Change System, these pads require no backing plate and take only seconds to change. These reticulated polyester urethane foam pads are double-sided, and feature a quick connect/disconnect method of interchanging. You get twice the surface area in one pad and each pad fits your machine like a glove. No slipping, no coming off, and no hook and loop.

• Unique beveled profile makes it easy to buff almost anywhere on any car: under mirrors, in grooves, and other areas you once had to hand-buff.
• Unique snap-lock connection lets you switch pads in a few seconds. Simply press the release button on the adapter (pictured at right) and pop off the pad. Snap a new pad on in one step. Incredibly fast!
• Strong, top-quality Edge foam pads save you money! One double-sided Edge foam pad lasts at least twice as long as ordinary single pads
• Strong, top-quality Edge foam pads save you money! One double-sided Edge foam pad lasts at least twice as long as ordinary single pads
  yet costs less than two 1-sided pads. The Edge makes good economic sense

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Yellow Cutting Pad aggressive, and will cut through deep surface marks and swirls. They work well on heavy oxidation and pitted finishes, and will remove wet sand scratches without causing burning.

Green Medium Cutting Pad for light oxidation and moderate to severe swirls and imperfections. This pad will yield amazing results on older vehicles, and should be used on vehicles with moderate swirls and imperfections. Add a compound or pre-wax cleaner for a flawless finish on base coats. 50 pores per inch (ppi)

Orange Light Cutting Pad highly versatile, as it can be used on cars with light to moderate swirls and imperfections. We recommend you begin with this pad if you are unsure how deep swirls are, moving up to a Green Medium Cut Pad if necessary. Safe on clear coats. 60 pores per inch (ppi)

Blue Finishing Pad for everyday use. It will leave surface areas scratch-free and smooth while still removing light swirls and imperfections. Use with wax and polish to apply a fine gloss. Safe on clear coats. 70 pores per inch (ppi)

White Finishing Pad extra-smooth polishing pad contains 80 pores per inch, allowing for fine polishing which creates a bold, crystalline gloss Use this pad to apply waxes, polishes and sealants. Safe on clear coats. 80 pores per inch (ppi)

Edge2K Drive DA Adaptor (Porter Cable 7424) -Edge Quick-Connect Adapter for the Porter Cable 7424 dual action orbital polisher.