These vintage watchmakers' vials are carefully planted with two tiny specimen of moss - royal pool moss at the base and reindeer moss curling upwards. The charcoal at the base of the plant keeps the little ecosystem healthy. These plants are self sustaining and need only occasional sunlight. The antique glass vials with corks measure between 1" and 2" tall, but most are 1 1/2" tall. Be careful not to drop or crush your vial: it will shatter. We've shellacked the paper labels to make them a little more water and wear resistant. The vintage brass chain measures 18" long.