Attributes:14K White goldHollowLobsterPolishedAppx Weight in Grams by Width/Length: (each item will vary slightly)2.5 mm width: 7 in = 1.07 gr, 9 in = 1.19 gr, 10 in = 1.27 gr, 16 in = 1.87 gr, 18 in = 2.02 gr, 20 in = 2.24 gr, 24 in = 2.56 gr3.5 mm width: 7 in = 1.63 gr, 8 in = 1.79 gr, 9 in = 1.96 gr, 10 in = 2.12 gr, 16 in = 3.02 gr, 18 in = 3.35 gr, 20 in = 3.71 gr, 24 in = 4.33 gr4.4 mm width: 7 in = 2.44 gr, 8 in = 2.66 gr, 16 in = 4.74 gr, 18 in = 5.18 gr, 20 in = 5.77 gr, 24 in = 6.83 gr5.75 mm width: 7 in = 3.58 gr, 8 in = 3.91 gr, 16 in = 6.49 gr, 18 in = 7.75 gr, 20 in = 8.3 gr, 24 in = 9.68 grOther Specs:Clasp / Connector: LobsterFinish: PolishedManufacturing Process: CastedManufacturing Process 2: Machine MadeChain Type: FigaroMaterial: GoldPurity: 14K