This unique elbow joint model is unlike any others on the market. In addition to a wide range of human movements, the model is also fully flexible. The model highlights all the important ligaments of the elbow and lower arm via colored molding. This is NOT just a section of the upper or lower arm ? this is a complete representation of the elbow. Additionally, extension, flexion, crossing of radius and ulna (pronation und supination) are enabled. The model can demonstrate up to 150? of flexion and extension. This model includes the lower portion of the humerus, a complete ulna and a complete radius. It?s created with high quality materials that replicate human ligament tissue. The model can demonstrate up to 150? of flexion and extension. Thanks to its superb craftsmanship, that continuation of flexibility is ensured even after years of use. The model is mounted on a stand yet is removable as individual structures of the elbow are easily viewed and identified for advanced study.