Quality Park Envelope Moistener w/Adhesive, Clear, 50 mL, 12 per Carton, (46067) BARGAIN: This envelope moistener secures over 1,500 envelopes MESS-FREE: Moistener dries fast and is contained in a spill-proof plastic bottle NO CLOGS: The patented spring-valve applicator won't clog so you can close more envelopes faster LESS YUCK: Never lick envelopes again with this spill-proof, no-clog, non-toxic product. Great for any paper project SAFE: This moistener is non-toxic, non-flammable and cleans up easily with water