Equipped with a 5/16"+ M8 Grip, this backing pad is easy to attach to your sander or polisher for quick and convenient changes. The sturdy construction of the MIRKA Backing Pad UNI ensures a secure grip on sanding discs or polishing pads, allowing for smooth and efficient operation. Whether you are a professional tradesperson or a DIY enthusiast, this backing pad is a valuable addition to your tool collection. Upgrade your sanding and polishing experience with the reliable performance of the MIRKA Backing Pad UNI 150mm 5/16"+ M8 Grip 61H Hard.