The Flex 450.400 4-inch Wet Concrete Polishing Pad Blue 400 Grit is a pad that will allow users of the Flex LCP 1703 VR to polish concrete with ease. Using a unique multi-channel segment design, the Flex 450.400 polishing pad allows for superior grinding and honing. Features: * High quality diamond resin ensures the best possible results * Top of the line 4-inch construction outlasts the competition * Standard Velcro backing for easy and quick pad changes What"s In The Box: * One Flex 450.400 4-inch Wet Concrete Polishing Pad Blue 400 Grit