1Clearly show the structure and shape of the knee joint. 2Vivid to simulate the bending, stretching and inward / outward rotation of knee joint. 3Demonstrate the anatomy and mechanics of the knee joint. 4Consists of portions of femur, tibia and fibula. 5Ideal for hobbyists interested in human bones. Descriptions: The knee joint is a joint with a large and complex structure and more chance of injury. The life size human model can show the structure and shape of the knee joint, bending, stretching and turning in/out. It is an ideal mold for enthusiasts interested in human bones. Features: 1. Clearly show the structure and shape of the knee joint. 2. Vivid to simulate the bending, stretching and inward / outward rotation of knee joint. 3. Demonstrate the anatomy and mechanics of the knee joint. 4. Consists of portions of femur, tibia and fibula. 5. Ideal for hobbyists interested in human bones. Specifications: Material: PVC Size: Approx. 32 x 11 x 11cm / 12.6 x 4.3 x 4.3in Overall Length: 32cm/12.6in Weight: Approx. 811g Package Includes: 1 x Knee Joint Model Note: Please allow 1-3mm error due to the manual measurement. Thanks for your understanding.