Welcome to our store! Descriptions: The product is an anatomical model of the human eye, suitable for classroom teaching equipment. It consists of three eye walls (outer, middle, and inner), refractive layers, lens, and vitreous body. The model is made in a 1:6 ratio and clearly shows the internal structure of the eye in detail. The cornea, iris, lens, and vitreous body can be removed, and the sclera and part of the choroid can also be observed. Specifications: Material: PVC Size: 16.5*15.5*25cm/6.3*6.1*9.85in Weight: Approx. 680g Package includes: 1 x Eyeball Model Note: Please allow 1-3mm error due to manual measurement. Thank you for your understanding. 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the item, such as damage and incorrect quantity of goods, please contact the seller immediately. We will do our best to provide you with satisfactory customer service.