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. Distance between center and the 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 a matching brand or model, please verify compatibility based on diameter (4.7 inches), 8 dust holes, 4 screw holes, and center-to-center screw distance (1-1/4 inches). Quality material: These disc sander pads are made from rubber with smooth surfaces, durable and resistant to breaking, designed for long-term and repeated use on flat surface sanding applications. Easy assembly: Built-in mounting thread allows for quick and secure installation, saving time and effort during replacement. Extend the life of the sander: Package includes 2 pieces of 8-hole hook and loop sander pads, providing sufficient quantity for personal use and future replacements, helping to maintain optimal sander performance.