This model demonstrates the important internal organs of fish, such as the respiratory system, circulatory system and the basic physiological structure of fish. Adult fish samples are an anatomical reference, exquisite workmanship, can be divided into 3 parts. Aquatic anatomy is an important part of animal anatomy. The complete display of certain anatomical structures emblematic of fish anatomy, showing in detail important internal fish systems of fish, is a rare product in aquaculture teaching. The model is made of high quality eco-friendly PVC, therefore it is not fragile and purely hand painted. Very suitable for school education, learning, research display and can also be used as an important addition to laboratory decorations.