My friend is from the seaside. He told me that the sucker of wild sea cucumber is big and flat, like a small round cake, because it often exercises. Because of the small amount of exercise, the sucker is thin and sharp, like a small cylinder. This is the most essential difference in appearance between the two. Friends in Beijing can go to the site of Ganshuiqiao in Gulou West Street, where there is a "Huiyuan Ocean Food" shop, and my friends took me there. All his sea cucumbers are wild. I bought it for my mother, and it worked well. As a result, several neighbors who used to eat big-name sea cucumbers went to him and said that the food was good and saved a lot of money.