Swiffer Dusters TRAP + LOCK dust wherever dust shows up, including fan blades, blinds, car interior, keyboard vents, bookcases, & more. They are made with specially coated fibers that grab onto dust & don't let go. Enjoy the lasting freshness of Gain as you clean. Leaves behind up to one hour of freshness after initial product use. Bristle Material: Fiber; Bristle Length: 2"; Bristle Color: Light Blue; Type: Duster Refill.