18"  Compact Automatic Scrubber, with charger, Lithium  battery and brushes (medium blue).

The i-mop XL has the maneuverability of a mop with the cleaning performance of a walk-behind floor scrubber. The i-mop makes it possible to clean any floor surface with freedom of movement and great ease.
Max Productivity: 19,375 ft2 /h
Battery Run Time: 70 minutes
Key Specs: 1.5 Gallon Recovery Tank 18.1” Brush Drive