Conveniently moisten stamps, envelopes or fingers. Eliminates the need for sponges, rubber fingers or unsanitary licking of fingers. Enclosed floating ball design eliminates splashing & reduces evaporation. Keeps water clean. Nonslip feet. Moistener Size: 1.25" x 1.25" x 5.38"; Color(s): Black / Blue; Material(s): Glycerin.