Chemical Guys TORQ R5 Dual-Action Backing Plate | Universal (BUFLC_200)TORQ R5 Dual Action Red Backing Plate with Hyper Flex Technology by Chemical Guys TORQ R5 3", 5", and 6" backing plates utilize Hyper Flex Technology to conform to curves and contours, filling the space more evenly with the pad for better results with your dual action polisher. Built For Flexibility, Performance, & Durability Hyper Flex Technology allows the R5 backing plate to flex and conform to every curve and contour, ensuring maximum buffing pad