Measuring 12cm to fit from 3 months to 15cm to fit around age 4 or 5, this hypoallergenic, highly polished, steel, bracelet with 2.5cm ID plate, has a cut out heart and has gold IP.  What is Gold IP?  "To begin with, a layer of titanium nitride is added to the base surface of stainless steel. Additionally a final plating metal (in this case, 14k gold) is added to the surface; the thickness of this layer is no more than 0.3 urn. ... Given its durability and chemical stability, ion plating is rightly called “permanent."