This small dog SACRO was developed by Nacional Ossos for planning and training of veterinary orthopedic surgery, with mechanical properties similar to those of a canine bone. Ideal for placing screws, plates and external fixator, 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. This product articulates with left pelvis (AV405E) and right pelvis (AV405D).