GREEN SEA URCHIN (Strongylocentrotus droebachiensis)

It occurs in tidal areas dominated by rocky bottom surface. They feed on seaweed and small marine animals.

Sea urchin is characterized by a rounded body, whose diameter is up to 87 mm. The body is covered with long urchin spines , which serves as a defense and movement.

Standard delivery size:
Sea urchin eggs
Fsh sea urchin 

(WIKIPEDIA)