Chain Length:17.7inches and 1.97inches extra chain.this length almost works on anyone!You can adjust for your comfortable size to wear. Meaningful Necklace:Mother son infinity necklace,means the love between mother and son is forever,the big circle represents the mother and the small circle is the son. The two are closely connected and always together. Unique Gift:This full with love necklace for mom,grandma,aunt, mother in-law, on birthday,mother’s day,thanksgiving,christmas. Delicate package:This mother son infinity necklace is beautifully gift wrapped with a special card in a beautiful box.She must love it. Service:If you have any question, please feel free to contact us!We will try our best to assure you a wonderful shopping experience.