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A Bola is a bell worn by women on a long necklace during their pregnancy. It is traditionally used in Mexico and Bali and is know under other names, such as harmony ball and pregnancy bell. The ball hangs low on the abdomen so the gentle chime soothes the baby as mother moves. When the baby is born, the baby is believed to be extra soothed by the sound because the child associates it with its time in the womb.
O’Shannessy, Mike. “What is a Harmony Ball?”.
Categories: Human pregnancy, Types of jewellery