Medium Low Profile Norton 6 Inch Hook-and-Loop Disc Backup Pad, Abrasive Mount Type Hook and Loop, Abrasive Mounting Quick Change System. Connector Size 5/16 In.-24, Connector Type Hook-and-Loop, Backup Pad Shape Round, Device Material Foam, Density Medium, Maximum Operating Speed 15,000 RPM, Number of Vacuum Holes 0, Color Yellow, Overall Diameter 6 in, Overall Thickness 1/2 in, Product Type Disc Backup Pad, Features Medium Low-Profile. This pad is used. The top has some wear but the bottom hook and loop works great. Sold with free shipping.