Herring fish belong to the family Clupeidae, which contains nearly 200 species. They are small, streamlined schooling fish that feed on plankton and live in both freshwater and saltwater.Herring have a single dorsal fin and protruding lower jaws and are silvery in color.erring fish belong to the family Clupeidae, which contains nearly 200 species. They are small, streamlined schooling fish that feed on plankton and live in both freshwater and saltwater.
DRUG DESCRIPTION. ESTRINGÂ® (estradiol vaginal ring) is a slightly opaque ring with a whitish core containing a drug reservoir of 2 mg estradiol. Estradiol, silicone polymers and barium sulfate are combined to form the ring.hen placed in the vagina, ESTRING releases estradiol, approximately 7.5 mcg per 24 hours, in a consistent stable manner over 90 days. ESTRING (estradiol vaginal ring) has the following dimensions: outer diameter 55 mm; cross-sectional diameter 9 mm; core diameter 2 mm.
A white gold wedding ring. A wedding ring or wedding band is a finger ring, often made of metal, indicating that its wearer is married. Depending on the culture, the ring is typically worn on the base of the left or the right ring finger. The earliest examples of wedding rings were found in ancient Egypt. The Western traditions of wedding rings can be traced back to ancient Rome and Greece and adopted by Christendom in Europe in the Middle Ages.