The vintage Chicago Pneumatic Dual Action Sander (Model CP870 / CPT870) is a single item unit with the manufacturer part number CP870. It is an air tool designed for automotive use, specifically for sanding tasks. While this item is being sold as untested, it still retains the quality and durability associated with Chicago Pneumatic brand. This sander is a valuable addition for collectors or those looking to repair or replace a specific model with a no warranty offer. Selling for parts or repair; untested