With fibers 100-times finer than human hair and special micro-grooves in each fiber, performance is incredible. When used as a wash mitt it absorbs 7-10 times its weight in water (less trips to the bucket). Can also be used dry as a duster. Micro-fibers collect dust and won’t scratch paint. The unique properties of micro-fiber loop string creates a handy device that facilitates faster more effcient washing.