[COMPATIBLE MODELS] Replacement sanding disc backing pad designed to fit Dewalt orbital sanders. Compatible with: DWE6423, DWE6423K, DWE6421, DWE6421K, DWE6421-B2, DWE6421-B3, DWE6421-BR, DCW210B. Direct replacement for DWE64233 and N329079. [EASY INSTALLATION] Sanding disc backing pads feature 4 built-in mounting screw holes for quick and secure installation. Provides improved abrasive paper grip. Note: Screws are not included; use existing screws from your sander. [DURABLE SANDING RUBBER PADS] 5-inch orbital sander pad made of high-quality soft rubber to reduce vibration, delivering smoother performance and better finish. Allows easy switching between different grits. [EFFICIENT DUST COLLECTION] 5-inch 8-hole design efficiently collects dust and debris into the vacuum or dust bag. Enhances cleanliness and visibility during use. [BUY WITH CONFIDENCE] We prioritize product quality and customer satisfaction. If you have any questions, please for prompt assistance.