There are many grades and varieties of sea cucumbers, with different places of origin and different prices. Now the sea cucumbers produced in Liaoning and Qingdao have good nutritional value and high public recognition.

Traditionally, fishermen at the seaside measure the size of sea cucumbers by the number of heads, that is, how many sea cucumbers are there per catty, and the fewer the heads, the bigger the sea cucumbers.

60-80 heads means that there are about 60-80 sea cucumbers per kilo of sea cucumbers.

The quantity of sea cucumber represents the size of sea cucumber. The smaller the quantity, the higher the nutritional value of sea cucumber, so it is more expensive.

Sea cucumber is one of the best quality sea cucumbers with thick and soft walls, and is known as the "crown of ginseng".

Because the nutritional value of this sea cucumber variety is the highest among many sea cucumbers, the seawater and temperature in these two producing areas are excellent, and the growth cycle of ginseng is long and the quality is better than that in other producing areas.