Her One, His Only - Matching Keychain and Heart Necklace Set Made in USA This beautiful aluminum key chain has a heart cut out of it - The heart makes for the pendant of the matching necklace! The keychain says 'her one' and the heart says 'his only'. Approximately 1.5" high on 18" chain Bright, sturdy aluminum is lightweight, hypoallergenic and will not tarnish. Handcrafted in the USA by Foxwise Jewelry.