Dry deer tires, of different sizes, are all arc-shaped, with large head, sharp mouth, long lower lip, slender limbs, hooves, short tail and hair on the back.

Small white spots, pale white when fresh, brownish red after drying. Hard and not easy to break. The smell is slightly fishy. It is best to be young, hairless, with intact fetal cells and no peculiar smell. The deer fetus produced in Sichuan is the fetus and placenta of monochromatic deer, white-lipped deer and white-lipped deer. Flatten with wooden boards and dry. The goods are oblate, brown, thirsty and covered with a layer of placenta.