The OB chain is used to assist in the delivery of a fetus when help is needed during birth. The chain's length is chosen based on the placement of the fetus in the birth canal: a shorter chain is ideal when the front legs are exposed, while a longer chain is needed if the fetus is displaced in the birth canal.
Features:
Designed to aid in the safe delivery of a fetus
Chain length varies based on the placement of the fetus
Shorter chain for exposed front legs and longer chain for displaced fetuses
