Bona's hardwood floor cleaner is the first choice of professionals. The no residue formula has been specially designed to be safe for floors, families and the environment. 36 Oz. sizeWood floor typePump sprayStreak freeSuitable for groutSurfactant loosens tough, heavy build-upBubbling action enhances and lifts away final surface debrisOxygenated formula removes heavy dirt and caked on messes from hardwood floors