Dense 3 - 5 micrometer quality fiber removes more dust, dirt and microbes than conventional cleaning products. Advanced hook-and-loop backing... holds-up under harsh laundering conditions and attaches pads more securely. Double finished edges retain mop shape with use over time. Color coded products help reduce cross contamination by differentiating area of use. Patent Pending Zig-Zag design packs 17% more split microfiber into each mop. Proven to clean floors 45% better than string mops, 25% better than conventional microfiber Superior construction and premium grade materials maximize durability and product life. Durable through 500 launderings, 200 with bleach.