・ This is the ear structure model A and B from Eugene's Human Anatomy Illustrated Encyclopedia. ・ Purchased a long time ago, opened, and displayed for a short while. ・ There may be some discoloration due to aging. ・ Please check the images for the condition of the product. ・ Please purchase if you understand that this item has been stored at home and inspected by an amateur. ・ Please feel free to contact us if you have any questions about the product or if you would like additional photos.