Trusuper His & Hers Couples Key Sol Music Symbol Pendant Necklace Set Lover Chain Crystal Drill Material: 316L titanium steel + AAA cubic zirconia Male's pendant: 1" height,0.9" width. Chain length: 20" Female's pendant: 1.4" height, 0.5" width. Chain length: 20" Nickel free and resistance against wear and tear Best gift for lovers