Mirka 8295610111 Backing Pad Hook'N'Loop HookIt Saver 150mm 6" 67H Vacuum Sanding Pads Saver This pad saver for backing pads has a 3 mm protective interface : Amazon.co.uk: DIY & Tools
Backing Pad, 150mm, Hook & Loop 514851
6" 150 mm Dual Action Hook & Loop DA Orbital Sanding/Polishing Backing Pad 5/16" 5055143921175 | eBay
Triton Hook and Loop Backing Pad 150mm Hook and Loop Backing Pad - 910308
Silverline Hook & Loop Backing Pad 5/16" UNF 125 Or 150mm
2x 6" 150mm Dual Action Hook & Loop DA Orbital Sanding Sander Backing Pad 5/16" | eBay