[Compatible Machines]: The 5 inch hook-&-loop sander pad is compatible with DWE6423/6423K, DWE6421/6421K, DCW210B random Trackal sanders. It's the direct replacement for pad part number DWE64233, N329079, RSP54.[Metal Backing]: The metal backing is much the plastic backings. It is harder and more difficult to be broken.[High-Density Hook]: High-density and uniform hook provide strong stickness and a long service life.[Soft Rubber]: High-quality and soft rubber can reduce vibration from Trackal sander for improved results.[Easy Installation]: Easy screw-on Installation. Attaches easily and hassle-free. NOTICE: the screws are not included. You can use the existing screws on your sander.Color: silvermaterial: metalPackage Contents:2 * Sander PadOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.