The Dust Magnet™ Dusting Sheets are available in 100-sheet rolls perforated at 23 inch lengths for easy removal or in boxes of 200 pre-cut sheets. When you use a Dust Magnet™ Dusting Sheets on any surface to be cleaned it builds up a slight static electric charge. Dust is attracted to the thick fiber pile much like a magnet. The more you use it, the better it works! Because the dirt clings to the Dust Magnet™ Dusting Sheets, it does not come off when cleaning overhead, making this product very versatile.