Envelope Moisteners are handy tools to conveniently moisten stamps, envelopes, and labels without mess or hassle. This eliminates the need for sponges, rubber fingers, or unsanitary licking of fingers, allowing you to moisten and seal envelopes in one simple pass. The all-purpose moisteners use a floating ball over a reservoir of water or a cellulose wick that pulls the water up from the bottom and stays moist for days. Get a compact envelope moistener from Martin Yale for a professional and clean mailing process.