The JT Eaton Duster Replacement Head, Blue is mainly used for cleaning out cobwebs. The Duster Replacement Head is made out of soft poly fibers that can grab insects and dust, along with the cobwebs. The Duster Replacement Head’s polystyrene bristles split into smaller fibers that hold the cobwebs, as opposed to spreading it around the room. The handle of the duster head can attach to a standard pole which can be found at home improvement stores. Dimensions:  7 in W x 6 in H Application: cobweb cleaner. Use on: indoor areas, outdoor areas.