The super extender handle extends up to 6 ft, allowing you to reach more areas of your home and trap and lock up to three times more dust and allergens. This duster offers 360 degrees of specially coated fibers that grab onto dust and don't let go. They are uniquely designed to trap and lock dust from every direction, common inanimate allergens from cat and dog dander, and dust mite matter. Bristle Material: Dust Lock™ Fiber; Bristle Color: Yellow.