. When large number of fen floats together over the surface of sea water, it looks like froth of sea water from a distance. Hence the name samudraphena; samudra indicating sea and phena indicating froth.
Fen sometimes reaches the shore.which is collected by the fishermen from sea or sea shore and dried under sunlight.
Later it is used by artisans for craft, painting or in medicine.
not for eat .
Size color may vary than add photo, but quality will be good.