Measurements:

Mama-Adjustable, Approximately 6.75" Circumference

Baby - Adjustable, Approximately 4" Circumference

Materials:Gold Filled, Cubic Zirconia

Never leave a child unattended with this product, as it is crafted with small materials that could potentially pose as a choking hazard. Keep out of reach of young children who may try to ingest the product or its components. Product should always be removed while sleeping and should never be placed in the mouth. *nickel free