The pregnancy bola is a necklace designed for pregnant women. It is round and sonorous, its long cord or chain highlights the mother's beautiful belly. With every movement, a gentle chime is emitted thanks to the presence of a tiny xylophone or a small copper ball filled with small metal beads that jingle together. By hitting the sides of the pendant, the small ball produces a delicate sound similar to a faint bell.

The baby becomes familiar with the soothing sound of the jewel placed on the belly, and the pregnant woman's pregnancy will be more relaxed. The baby recognizes the harmonious sound from the 19th week of pregnancy. As soon as it hears it, the sweet melody will reassure and calm it. It reacts by moving or relaxing during the nine months of pregnancy. When it comes into the world, it will recognize the familiar sound of the bola because it was used to hearing it in its mother's womb. Therefore, the bola will soothe the infant even after birth.

The chain is made of silver-plated stainless steel and measures 70 cm in length.