Sebo 9250AM ET2 Power Head 15-inch Power Head Width Four-level Manual Brush Height Adjustment A Flat-to-the-floor 3 1/2-inch Profile Its 180 Steering Ability is Highly Maneuverable Around Furniture A Convenient Clog Removal Door Warning Light to Indicate Incorrect Height Setting or a Worn Brush Roller Brush Obstruction Warning Light with Automatic Shut Off