This KNEE manufactured by Nacional Ossos for planning and training of orthopedic surgery, with mechanical properties similar to human bone, composed of FEMUR (2025BESP), TIBIA (2026BESP), the bones with spongy cortical structure and medullary canal, also joined, by simulating collateral ligaments (lateral and medial) and cruciate (anterior and posterior). Ideal for placing hip prosthesis, knee prosthesis, intramedullary nail, placement of screws, plates, external fastener and anchors. It allows the orthopedist to have training, very close to the real thing, training himself with respect to Bioethics. It can be fixed on the line of vises, which allow making the necessary movements in all axes for the orthopedist to work with both hands, as in the real patient, firmly and safely.