Premium 7" Flexible Edge Polishing Buffing Hook and Loop Backing Pad. This pad has the universal standard rotary polisher's 5/8" - 11 spindle thread size. Maximum pad operation speed 3,000 rpm. The backup pad's hook & loop grip mount backing provides a secure no-slip grip attachment to polishing pads but still allows for quick and easy pad changes. The flexible edge of the pad will enable you to safely navigate curves and contours of surfaces at low or high speeds for fast and effective polishing. Backing plate's durable foam construction and strong center core keep it well-balanced and stable when in use to evenly distribute the pressure. For use with any hook & loop grip mount buffing or polishing pads that allow a 7" backing plate. Includes a pad centering tool TCP Global Brand 7" Hook & Loop Grip Mount Universal Polisher Buffer Backing Plate Pad, 5/8" - 11 Threads - Attach Foam Wool Buff Pads - Rotary Polisher Backup Pad - Automotive, Car Detailing