Made of oak wood and birch fungus, it is the top mushroom second only to Hippothecum mongolicum, which is rich in protein, fat, sugar, calcium, phosphorus and other nutrients. It tastes delicious and has high edible value. Contains a variety of essential amino acids and vitamins, which can enhance the body's resistance ability, improve the intelligence and happiness, nourish qi and avoid hunger, prolong the life and light the body. And can be used as medicine, with the function of relaxing tendons activating collaterals, strong tendons strengthening bones, the main treatment of waist and leg pain, hand and foot numbness, muscles and collaterals are not comfortable and other diseases