[COMPATIBLE MODELS] Designed to fit Dewalt orbital sanders. Sanding disc backing pads compatible with DWE6423, DWE6423K, DWE6421, DWE6421K, DWE6421-B2, DWE6421-B3, DWE6421-BR, and 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, improving abrasive paper grip. Note: Screws are not included; use existing screws from your sander. [DURABLE SANDING RUBBER PADS] 5-inch orbital sander pads made of high-quality soft rubber to reduce vibration, providing better control and smoother 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 for cleaner operation. [BUY WITH CONFIDENCE] We prioritize product quality and customer satisfaction. If you have any questions, please for prompt support.