2-pack of 18" Inch Premium Microfiber Wet Mop Pads for Professional Commercial Microfiber Mops Washes over 1000 times. Easy to use and safe for all floors. Microfiber material is very absorbing for mop procedures. Microfiber pad velcros in place. Wash in your washing machine. These Microfiber mop pads measure a total of 20" in length which fits all 18" frames and hardware.