PDP's best-selling glass cleaner has an exclusive foaming action that penetrates and removes greasy stains, fingerprints, smudges, bugs, and other foreign matter. The special nozzle applies in a round circle of foam that does not drip. Then spread and dry preferably with a diamond-patterned waffle microfiber made especially to clean windows. Does not streak or leave a residue! Excellent for use on any non-porous surface. Contains no ammonia.