Medical props model Human Anatomical Knee Joint Flexible Skeleton Model Medical Learning Aid AnatomyFeatures: It shows he main anatomical structures and important bones of the knee joint. It consists of portions of femur, tibia and fibula. It demonstrates the anatomy and mechanics of the knee joint. It also demonstrates flexion, extension, internal rotation and external rotation of the knee joint and the gliding motion of the patella. It's a great teaching aid and tool of medical and anatomy learning. Specifications: Material: PVC Color: White Size: