The Rubbermaid Commercial HYGEN Microfiber Damp Room Mop is constructed of premium split nylon / polyester blend microfiber that provides optimal damp mopping performance. HYGEN floor microfiber mops clean 45% better than string mops & 25% better than conventional microfiber mops with a zig-zag design that packs 17% more split microfiber into each mop. Hook-and-loop microfiber mop pads attach securely & can be easily replaced when necessary. These floor mops withstand heavy use with double-finished edges that retain their floor mop shape & can be laundered more than 500 times, 200 with bleach. These mop heads are color-coded blue for general purpose cleaning in low-risk areas. Head Type: Wet Mop Pad; Application: Floors; Mop Head Style: Microfiber Wet Room Pad; Mop Head Size: 18.5" x 5.5" x 0.5".