Fiber fingers trap and hold dust and dirt. For use with Swiffer Duster Handle (sold separately). Swiffer Duster refill offers the trapping power of Swiffer in a fluffy, go-anywhere form. Uses thousands of soft, fluffy fibers that can change shape to fit wherever they must go with a handle that allows you to get to where your hand can't reach. You'll be surprised to discover how easy it is to dust both small places and large areas. Works so well that you may actually begin to like dusting. When you're finished cleaning, just toss the duster and the dust into the garbage.