Descriptions: The product is an anatomical model of the human eye, which issuitable for classroom teaching equipment. It has three eye wall (outer, middleand inner) , refractive layers, lens and vitreum. Features: 1. The model is produced at a ratio of 1:6. 2. Consist of three eye wall (outer, middle and inner) , refractivelayers, lens and vitreum. 3. Clearly show internal structure of the eye in detail. 4. The cornea, iris, lens and vitreous body can be removed. 5. The sclera and part of the choroid muscle membrane 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 the manual measurement. Thanksfor your understanding.