MODELS: Works for models DWE6423/6423K, DWE6421/6421K, DWE6421-, DWE6421-B3, DWE6421-BR, DCW210B random Track sander. It's the direct replacement for pad part number DWE64233 and N329079.METAL BACKING: The metal backing is much the original plastic backings. It is harder and more difficult to be broken.SOFT RUBBER PADS: High-quality and soft rubber can reduce vibration from Track sander for better work. 8 Hole design for effective with dust collection.HIGH-DENSITY : High-density and uniform strong stickness and long service life.EASY INSTALLATION: Easy screw-on Installation. Attaches easily and hassle-free. (NOTICE: the screws are not included. You can the existing screws on your sander.)colour:black & silverMaterial:metalsize:125mmPackage Contents:3 x Sander PadOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.