2-pack of 18" Inch Microfiber Wet Mop Pads for Commercial Microfiber Mops Wash in your washing machine. 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. These Microfiber mop pads measure a total of 20" in length which fits all 18" frames and hardware.