Attributes:14K White goldLobsterPolishedSolidAppx Weight in Grams by Width/Length: (each item will vary slightly)0.9 mm width: 7 in = 1.38 gr, 8 in = 1.54 gr, 16 in = 2.66 gr, 18 in = 3.03 gr, 20 in = 3.22 gr, 24 in = 3.85 gr, 30 in = 4.79 gr1 mm width: 7 in = 1.67 gr, 8 in = 1.83 gr, 16 in = 3.31 gr, 18 in = 3.7 gr, 20 in = 4.06 gr, 24 in = 4.75 gr1.3 mm width: 7 in = 2.11 gr, 8 in = 2.35 gr, 16 in = 4.32 gr, 18 in = 4.74 gr, 20 in = 5.32 gr, 24 in = 6.13 gr1.4 mm width: 7 in = 2.73 gr, 8 in = 2.92 gr, 16 in = 5.59 gr, 18 in = 6.39 gr, 20 in = 7.07 gr, 24 in = 8.39 gr, 30 in = 10.34 gr1.5 mm width: 7 in = 3.29 gr, 16 in = 6.89 gr, 18 in = 8 gr, 20 in = 8.26 gr, 24 in = 10.51 gr, 30 in = 12.57 gr2 mm width: 7 in = 4.52 gr, 8 in = 5.31 gr, 16 in = 9.45 gr, 18 in = 10.99 gr, 20 in = 12.03 gr, 24 in = 14.4 gr, 30 in = 16.8 gr2.3 mm width: 7 in = 6.4 gr, 8 in = 6.98 gr, 16 in = 14.41 gr, 18 in = 15.55 gr, 20 in = 17.16 gr, 24 in = 20.36 gr, 30 in = 25.8 gr2.5 mm width: 7 in = 8.28 gr, 8 in = 8.41 gr, 16 in = 17.11 gr, 18 in = 19.21 gr, 20 in = 21.19 gr, 24 in = 24.27 gr3 mm width: 8 in = 11.69 gr, 9 in = 13.43 gr, 18 in = 25.85 gr, 20 in = 28.67 gr, 24 in = 33.42 grOther Specs:Clasp / Connector: LobsterFinish: PolishedManufacturing Process: ExtrudedManufacturing Process 2: Die StruckChain Type: FrancoMaterial: GoldPurity: 14K