Cast from our unique bone-like plastic and fully articulated by means of wing nuts, this pelve quickly disarticulates into four pieces - left and right innominates, sacrum and pubic symphysis - ideally suiting them to detailed measurements of size, shape, angle, inlets and outlets. Useful for studies in anatomy, OB/GYN, midwifery, and forensics. This adult pelve includes the 5th lumbar vertebra.