The 6 inch backing plate for dual action polishers. Nothing holds pads better than hook and loop flexible backing plates. Backing plate actually measures 5-3/4 inch so it perfectly lines up to almost any and every 6 inch pad just right. ANSI Dual-Action Flexible Backing Plates minimize heat transfer, while it flexes just enough to contour to your car s bends and curves. These backing plates are built tough. Ideal for use with Dual-Action Polisher