Attributes:LobsterPolishedSolidSterling silverAppx Weight in Grams by Width/Length: (each item will vary slightly)1 mm width: 16 in = 1.31 gr, 18 in = 1.47 gr, 20 in = 1.64 gr, 24 in = 1.96 gr1.25 mm width: 9 in = 1.2 gr, 10 in = 1.26 gr, 16 in = 1.63 gr, 18 in = 1.84 gr, 20 in = 2.03 gr, 22 in = 2.18 gr, 24 in = 2.38 gr, 26 in = 2.57 gr, 30 in = 2.97 gr, 36 in = 3.56 gr1.5 mm width: 7 in = 0.92 gr, 9 in = 1.18 gr, 10 in = 1.31 gr, 16 in = 2.09 gr, 18 in = 2.35 gr, 20 in = 2.61 gr, 22 in = 2.87 gr, 24 in = 3.13 gr, 26 in = 3.39 gr, 30 in = 3.92 gr, 36 in = 4.69 gr1.95 mm width: 7 in = 1.43 gr, 7.5 in = 1.31 gr, 8 in = 1.62 gr, 16 in = 3.03 gr, 18 in = 3.26 gr, 20 in = 3.37 gr, 22 in = 3.93 gr, 24 in = 4.28 gr, 26 in = 4.64 gr, 30 in = 5.44 gr, 36 in = 6.52 gr2.25 mm width: 7 in = 1.94 gr, 8 in = 2.22 gr, 16 in = 4.08 gr, 18 in = 4.54 gr, 20 in = 5.06 gr, 22 in = 5.51 gr, 24 in = 6 gr, 26 in = 6.51 gr, 30 in = 7.43 gr, 36 in = 8.91 gr2.75 mm width: 7 in = 3.15 gr, 8 in = 3.22 gr, 16 in = 6.26 gr, 18 in = 7.39 gr, 20 in = 8.2 gr, 22 in = 8.89 gr, 24 in = 9.69 gr, 30 in = 12.6 gr, 36 in = 15.12 gr3.5 mm width: 7 in = 4.56 gr, 8 in = 5.09 gr, 16 in = 10.2 gr, 18 in = 11.75 gr, 20 in = 13.05 gr, 22 in = 13.98 gr, 24 in = 15.25 gr, 30 in = 18.68 gr4.5 mm width: 7 in = 6.55 gr, 8 in = 6.93 gr, 16 in = 15.47 gr, 18 in = 17.56 gr, 20 in = 19.36 gr, 24 in = 23.4 gr, 30 in = 29.03 gr6.1 mm width: 16 in = 26.27 gr, 18 in = 29.6 gr, 20 in = 32.9 gr, 24 in = 39.47 gr, 30 in = 49.34 grOther Specs:Clasp / Connector: LobsterFinish: PolishedItem Weight U/M: gmManufacturing Process: Machine MadeChain Type: CableMaterial: Sterling SilverPurity: 925