The sturdy over the filter give it more durability over-time The Agitator Roller deeply removes dirt from your floors, and ensures the removal of and crumbs from hard and hardwood floors in your home Our the dual-sweeping side brushes are made with high-strength bristle to collect more in a unit area Widely Application: The cleaning head works great on many types of floors, such as marble, smooth, laminate, especially for short-pile carpet Our replacement-parts have been tested on compatible-machines to the appropriate functioning and machine protection