The Flex 651.250 6.5-inch x 1.25-inch Beveled Edge Self Centering Ultra Finishing Pad - Red has a beveled edge and is used for coarse polishing. The Flex 651.150 is made specifically for the Flex PE 142-150ACEE. Features: * Used for polishing * Beveled edge What"s In The Box: * Flex 651.250 6.5-inch x 1.25-inch Beveled Edge Self Centering Ultra Finishing Pad - Red