Thousands of microscopic fibers pick up and hold dust, dirt and grime. Microfiber is a component used in green cleaning - for superior cleaning effectiveness and reduces chemical and water usage. Hypoallergenic, lint-free, nonabrasive, absorbant cloths eliminate streaking. Blue color-coded cloths help to avoid cross-contaimination. Machine washable. 16" x 16" cloths. Sold 12 cloths per case.