Pack of 2 replacement 81mm x 133mm hook & loop backing pads for the R7667 & R7668 Palm Orbit Sanders. These low profile backing pads feature 36 holes, with air channels directed towards to the centre of the pad, for effective dust extraction when used with a suitable abrasive such as Rutlands® Net Abrasives and a connected dust extractor. Pads are medium density, providing a small amount of flex appropriate for general use. Regular backing pad replacement is essential for the longevity of the sander, as worn pads can unbalance the sander causing vibration and motor damage. ©