Clear Blue Concentrate is a concentrated glass and hard surface cleaner that dilutes 1:10 with water for ready-to-use window cleaner. It is an advanced formula containing deionized, softened water, alcohol and special cleaners that “wick” into the cleaning cloth and evaporate completely for streak-free cleaning. Removes fingerprints, smoke film, grease and other soils. Dilute 1:3 for non-freezing window cleaner in winter.