[UNIQUE DESIGN] Different sizes for both sides of the pad - - front 7inch (180mm), rear 6.7inch (170mm) - - a specific design to protect the surface against scratches when polishing, to reduce abrasion for both pads itself, plate and surface. [HIGH QUALITY] top quality , sponge pad, foldable, washable and reusable. Used for all kinds of layer paints, waxing, polishing and sealing glazes, to clean and improve their lightness. The biggest advantage of our pads is to lock and retain the polishing compound (prevents falling off at high speed). And they have great heat dissipation capacity [EASY TO USE] Can be used in pneumatic or electric polisher. Used for auto car detail polishing. With velcro you can easily change the sponge. It is suggested to wash them with clean water and dry them naturally after using. [ADVANCED MANUFACTURING TECHNOLOGY] manufacturing soft and fine, do not damage the surface, washable and save money. They are lightweight and easy to assemble. Made of open cell foam which improves air circulation. [DIFFERENT DIFFICULTIES] There are five different colors of the sponge pad with different hardnesses: Yellow>Orange>Blue>White>Black, effective cutting and polishing the toughest car oxidation coating, scratches.