The Scooba 21013 hard floor cleaner is an effective, economical and safe cleaning solution formulated for the iRobot Scooba Floor Washing Robot. All natural and non-toxic, it is strong enough to clean tough spills, yet safe for you, your pets and our planet. Effective on all sealed hard floors, including wood. This cleaner uses pure vegetable-based enzymes to break down grease, food particles and dirt into oxygen, carbon and other all natural elements that readily integrate with the environment, instead of polluting it. The solution is highly concentrated, yielding 64 uses per bottle.