Unique design: Different sizes on both sides of the polishing pad --- 7inch (180mm) in the front, 6.7inch (170mm) in the back --- The special design can prevent the surface from being scratched when of polishing, and reduce the wear and tear of the polishing pad itself, the plate and the surface. High quality: High quality sponge pad, foldable, washable and reusable. For all coats of paint, waxing, polishing and vitrification, cleaning and reviving. The great thing about our pads is that they lock and hold the polish (prevent shedding at high speeds). And they have strong cooling capacity Easy to use: Can be used with pneumatic or electric polishers. For polishing automotive details. With the Velcro you can easily replace the sponge. It is recommended to wash with water and dry naturally after use. Advanced workmanship technology: Soft and fine workmanship, no damage to the surface, washable and save money. They are lightweight and easy to assemble. Made of open cell foam for better air circulation. Different hardness: there are five different colors of sponge pads with different hardness: white yellow orange blue black, effectively cuts and polishes auto-oxidized coatings the more resistant, scratches.