It is collectible and worthless. Black buffalo horn not only has medicinal value, but also has a wide range of uses as a work of art. Every oversized buffalo horn bracelet with a diameter of about 3cm is a rare plaything. It has become a handicraft through a specific process, which has the effect of health preservation, so it has certain collection value. Buffalo horn is sold by weight and has the effect of cooling blood and detoxifying. If you are stung by a bee in the wild, you can use black buffalo horn and then apply it to the wound to cool the blood and detoxify. The price is around 35 yuan, which is worthless.