Attributes:Appx Weight in Grams by Width/Length: (each item will vary slightly)4.5 mm width: 7 in = 4.18 gr, 8 in = 4.7 gr, 9 in = 5.24 gr, 16 in = 8.87 gr, 18 in = 10.75 gr, 20 in = 11.64 gr, 22 in = 12.67 gr, 24 in = 13.91 gr5.65 mm width: 7 in = 7.06 gr, 8 in = 7.61 gr, 9 in = 8.58 gr, 16 in = 13.76 gr, 18 in = 16.38 gr, 20 in = 19.09 gr, 22 in = 19.52 gr, 24 in = 22.14 gr6.75 mm width: 7 in = 7.73 gr, 8 in = 10.68 gr, 9 in = 11.13 gr, 16 in = 16.75 gr, 18 in = 20.32 gr, 20 in = 23.56 gr, 22 in = 27.03 gr, 24 in = 29.66 gr8 mm width: 7 in = 11.21 gr, 8 in = 12.96 gr, 9 in = 13.92 gr, 16 in = 22.4 gr, 18 in = 24.97 gr, 20 in = 31.66 gr, 22 in = 34.35 gr, 24 in = 32.47 gr9.75 mm width: 7 in = 17.83 gr, 8 in = 18.84 gr, 9 in = 20.21 gr, 18 in = 48.41 gr, 20 in = 54.8 gr, 22 in = 54.6 gr, 24 in = 52.23 gr11.9 mm width: 7 in = 24.4 gr, 8 in = 29.3 gr, 9 in = 32.12 gr, 18 in = 65.83 gr, 20 in = 67.44 gr, 22 in = 75.02 gr, 24 in = 86.29 gr13.8 mm width: 8 in = 42.83 gr, 9 in = 41.82 gr, 20 in = 102.4 gr, 22 in = 112.63 gr, 24 in = 107.87 gr15.75 mm width: 7 in = 42.29 gr, 8 in = 46.55 gr, 9 in = 52.63 gr, 20 in = 114.1 gr, 22 in = 127.25 gr, 24 in = 139.92 grOther Specs:Clasp / Connector: LobsterFinish: PolishedGender: Men'sChain Type: CurbMaterial: Sterling SilverPurity: 925