hypoallergenic and stainless steel necklace, mirror polished on both sides. Composed of a 17x18mm heart and a steel chain, available in the sizes selectable in the listing We can engrave names, initials (max 5 letters due to the size of the heart) By default we engrave one side, for a double side contact us for a quote. The writing is not "dug", it is an indelible sign that is laser-printed on one side of the pendant. The metal of the pendant is hypoallergenic steel, hand-polished on both sides. The chain, for obvious manufacturing needs, is made of ferritic steel, always hypoallergenic and stainless, it does not darken. for engraving you can contact us first to define the format, then proceed with the purchase.