Labour Delivery Model (Gd/f20g)

We are providing a premium quality range of Labour Delivery Model (GD/F20G) to our esteemed consumers. The whole models demonstrate the relations between the scope of the expanding of the orifice of cervix and the range of the cervical tunnels, as well as the relation between the head of the fetus and the square of the ischial spine.
Key Features:
* The orifice of cervix has no expanding and the cervical tunnels haven't dissapeared at all The positional relation between the head of the fetus and square of the ischial spine is -5.
* The orifice of cervix has expanded2cm bigger and the cervical tunnels dissapear 50%. The positional relation between the head of the fetus and square of the ischial spine is -4.
* The orifice of cervix has expanded 4cm bigger and the cervical tunnels dissapear absolutely. The positional relation between the head of the fetus and square of the ischial spine is -3.
* The orifice of cervix has expanded 5cm bigger and the cervical tunnels dissapear absolutely. The positional relation between the head of the fetus and square of the ischial spine is 0.