We have specially designed digital indicator signs, convenient for you to learn accurately and effectively, to better understand and practice. Save learning time and improve learning efficiency. Ideal for school teaching, learning, research, display tool and laboratory decoration supplies. The bacterial nuclear model shows a cross-section of prokaryotic cells, in which the typical structures of flagella, inclusion bodies, plasmids and chromosomes are appreciated. It is a rare product for understanding prokaryotic cells. The model also shows the cell wall structure of Gram-negative and Gram-positive bacteria, so you can vividly explain relevant knowledge to students through the model, which is the best auxiliary tool for their teaching. It is made of eco-friendly food-friendly PVC materials, computer color combination and high quality hand painted. It almost faithfully shows the structure of human teeth. It is a rare tool for students to undertake relevant hands-on training, so it will be a great addition to your lab supplies.