Ultra-fine fibers act like dirt magnets to clean and polish fine finishes, glass, polished and plated metals, lenses, electronics, appliances and furniture. Safe for most surfaces. Machine washable. Advanced technology microfibers are hundreds of times smaller than a human hair. They have thousands of small fibers which lift and carry dirt particles away from fine surfaces. The fibers are knitted into thousands of loops in a cloth that is ultra-absorbent, easily absorbing many times its weight in fluids. Available in multiple sizes to address different tasks.