The size of this model is just the same as the realities and made of PVC plastic. It shows the following:_x000D_
Pelvis shapes: Short ande broad._x000D_
Pelvis cava: Like a barrel._x000D_
Aperture pelvis superior: Rounded._x000D_
Sacrum: Broad and short with little flexibility._x000D_
Angles of Pelvis arch: 90-100 degree._x000D_
Symphysis pubica: Short and broad.