Swiffer Heavy Duty Dusters trap and lock up to 3x more* dust & allergens.** And, with thousands of fluffy, specially-coated fibers and a 360 degrees design, they grab onto dust in every direction and don't let it go. (*vs. feather duster) (**common inanimate allergens from cat and dog dander & dust mite matter) Multi-surface Can be used on many different surfaces.