The secret to the Flex XC 3401 Polisher's outstanding performance is in the backing plate. The unique design forces a true dual action motion, rather than jiggling. The backing plate's fit and design reduce vibration and give the operator a smoother, more comfortable motion.

The Flex XC3401 Mini 4 3/8" Backing Plate is made of durable molded plastic with a urethane pad to dampen vibration and heat. Hook and loop fasteners cover the bottom of the plate from edge to edge. The size of the backing plate is 4 3/8 inches in diameter. We recommend our 6" single side foam buffing & polishing pads.