The Flex 451.001 is a 4-Inch Dry Pad Set. Includes 50,100,200,400,800,1500,3000 GRIT. Features: * Includes 50,100,200,400,800,1500,3000 GRIT * Variety Pack of Sanding pads to easily sand any surface What"s In the Box: * Flex 451.001 4-Inch Dry Pad Set