Swiffer® Heavy Duty Dusters Refill, Dust Lock Fiber, Yellow, 6/Box, 4 Boxes/Carton (PGC21620CT) Case of 24Swiffer Heavy Duty Dusters Refill All around design maximizes surface area to reach tight corners and smaller spaces. Traps and locks up to 3x more dust than a feather duster. Ideal for cleaning wood furniture, electronics, plants and more. For use with Swiffer Heavy Duty Dusters Handle (sold separately). Global Product Type: Duster Refills Bristle Material: Dust Lock Fiber Bristle Length: 6" Bristle Depth: 2" Bristle Color: Yellow Width: 4" Length: