Universal Replacement Pad: The 4.7 inch hook and loop replacement pad features 4 screw holes and 8 dust holes, fits most sander backing pads. The distance between center and center of pad screw holes is about 1-1/4 inch. Please confirm the size before purchase. Suitable for sanders with 4 screws. If your sander is not the above brand or model, please check if it fits your sander based on this information: 4.7 inch in diameter, 8 dust holes, and 4 screw holes, especially the distance between screws (center-to-center holes 1-1/4 inch). Quality material: These disc sander pads are made of rubber with smooth surfaces, not easy to break, which can be applied for a long time and many times, work well on sanding flat surfaces. Easy Assembly: Built-in mounting thread allows you to install the replacement sander pad easily and quickly, saving your time and effort. Prolong the life of the sander: You will get 2 pieces of 8-hole sander hook and loop pads in the package, enough quantity for your use and replacement, effectively extending the service life of the sander.