The Flex 305936 is a Flexible Backing Pad. The Flex 305936 is used for connecting 5/8” backed lambswool model 123870 which is used for polishing and glossing products. Features: * Designed for use with the Flex 123870 5/8-Inch Backed Lambswool. * Aides in polishing and glossing projects. What"s In the Box: * Flex 305936 Flexible Backing Pad