Sea cucumber is not necessarily Nagasaki ginseng, but also Turkish ginseng, but the price is more expensive than Nagasaki ginseng. The retail price of 690 is not high. Overseas sea cucumbers have thorns because unlike our common sea cucumbers, they all have thorns and may grow in the same sea area. Some of them have thorns and some don't, but their nutrition is the same. It's just that people in China are used to wearing thorns, so those with thorns are much more expensive than those without thorns.