Natural size, plastic products. The model includes a palpable soft front and skin muscles, with the bones of the knee joint embedded on the right side. It is fastened to the front by snaps. Arthroscopy models may or may not have prescribed channels. Calf bone with knee disc (healthy), fixation bracket on thigh, Hoffa fat pad, knee collateral ligament and cruciate ligament, part of muscle, meniscus (healthy).