The knee model shows progressive osteoarthritis in four phases The knee model PHY-KJ-3 from the practice need of physa in three-dimensional execution shows the four important development stages of the Arthrose unD offers everything that requires a realistic reproduction of the human knee skeleton: All bones of the knee system are precisely shaped in their anatomy and are covered by all important articular ligaments. This is the ideal object for visualisation and exercise in doctors' offices, hospitals, schools and universities. precisely - high-detailed and akkurates 3D-Modell in half quantity shows four phases of Arthrosis stable - the solid foot ensures a safe stand versatile - ideal as a learning, decoration or exhibition object mobile – already fully assembled, can be used immediately and anywhere