Compatibility: Standard Replacement Pad for RS290, RS241, RS240, RS280/RS280VS, RS281VS, P411, 602121 and 603421, for 315.112170, 315.116940, 315.116950, 315.112180, 315.279870 Random Orbit Sander. Upgrade: thicker and harder backing, improved cushion rubber, and denser hook than the original pad for longer life and better grip. Notice: If your sander model is not listed, verify fit using these specifications: 5 inch diameter, 8 dust holes, 4 screw holes, and screw hole centertocenter distance of 11/8 inches. Screws and washers are not included. Easy installation: Builtin mounting thread allows quick installation and enhances abrasive paper grip. Use scenarios: Smoothing wooden doors, window frames, and furniture as part of finishing or refinishing work. Preparing surfaces for paint, stain, or sealant on cabinets, shelves, or trim. Light material removal and finish leveling on woodwork or cabinetry with a random orbit sander.