The size of this model is just the same as the realities and made of PVC Plastic. It shows the following:_x000D_
Pelvis shape: Long and narrow._x000D_
Pelvis cava: Like a funnel._x000D_
Aperture pelvis superior: Heart-like_x000D_
Sacrum: Long and narrow with great flexibility._x000D_
Angles of Pelvis arch: 70-75 degree._x000D_
Symphysis pubica: Long and narrow.