Meguiar's DBP6 6 inch DA Backing Plate for a Dual Action Polisher : Amazon.co.uk: DIY & Tools
DA Backing Plate 6 Inch — Meguiar's Australia
5 or 6 Inch M14 M16 Soft Edge Backing Plate for Polishing Pad Buffing Pads Rotary Polisher Adhesive Back Plate - China Car Polisher Pad and Polishing Back Pad
1''- 6'' For Hook And Loop Sanding Disc Sander Backing Plate Polisher Holder Pad | eBay