New. Wave technology catches over 99% of dust and dirt (Sweep over 99% of common household dust and dirt such as rice, cereal and sugar, as tested at an independent accredited lab). Patented (Pending) wave Technology: Angled, firm, red bristles pull dirt from corners. Semi-soft, black bristles capture dirt effectively. Flare-tip memory bristles maintain shape. Bristles made from 80% recycled plastic.