Swiffer Dusters Super Extender Handle extends up to 3 feet allowing you to reach more areas of your home and Trap plus Lock up to 3x more dust and allergens. 360 degrees of specially coated fibers grab onto dust and don't let go. They are uniquely designed to Trap plus Lock dust from every direction. vs. feather duster, common inanimate allergens from cat and dog dander and dust mite matter