All-purpose moistener designed for fast processing of envelopes. Easily moistens all sizes of envelopes in one mess-free pass. Separate area specifically made to apply moisture to stamps or fingers. Advanced cellulose wick pulls water up from bottom- stays moist for days. Enclosed housing prevents splashing and protects water supply from evaporation. Moistener Size: 3 3/4" x 3 3/4" x 2 1/4"; Color(s): Black; Material(s): Plastic; HUB Compliance: N/A.