cheddar and swiss for eggs. beat that! kraft. family greatly. with large debris and stuck-on dust, so shark invented duoclean, replacing the front wall with a rotating soft brush. while deep cleaning carpets, two brush rolls pick up large particles with ease, make quick work of stuck-on dust, giving hard floors a polished look, and fearlessly devour piles. shark duoclean technology, designed to do more on carpets and floors, available in corded and cord-free vacuums, and only available from shark. on carpets and floors, available in corded ♪ it's a feeling that's hard to describe... ♪ ...and even harder to forget. ♪