Attributes:LobsterPolishedSolidSterling silverAppx Weight in Grams by Width/Length: (each item will vary slightly)7 mm width: 7 in = 12.3 gr, 8 in = 13.98 gr, 16 in = 29.98 gr, 18 in = 32.05 gr, 20 in = 34.88 gr, 22 in = 38.82 gr, 24 in = 43.25 gr, 26 in = 46.61 gr, 28 in = 50.28 gr, 30 in = 52.5 gr7.5 mm width: 7 in = 16.07 gr, 8 in = 18.26 gr, 18 in = 40.97 gr, 20 in = 46.94 gr, 22 in = 50.77 gr, 24 in = 55.9 gr, 26 in = 60.03 gr, 28 in = 66.72 gr, 30 in = 70.84 gr8 mm width: 7 in = 19.44 gr, 8 in = 22.13 gr, 18 in = 50.45 gr, 20 in = 55.16 gr, 22 in = 63.69 gr, 24 in = 66.91 gr, 26 in = 71.73 gr, 28 in = 78.77 gr, 30 in = 84.15 gr9 mm width: 8 in = 27.69 gr, 9 in = 32.24 gr, 18 in = 64.1 gr, 20 in = 72.1 gr, 22 in = 79 gr, 24 in = 86.56 gr, 26 in = 94.83 gr, 28 in = 101.65 gr, 30 in = 106.92 gr11 mm width: 8 in = 35.22 gr, 9 in = 39.81 gr, 18 in = 79.86 gr, 20 in = 90.97 gr, 22 in = 99.71 gr, 24 in = 110.24 gr, 26 in = 119.24 gr, 28 in = 127.16 gr13 mm width: 8 in = 54.81 gr, 9 in = 61.76 gr, 20 in = 135.87 gr, 22 in = 150.59 gr, 24 in = 163.26 gr, 26 in = 178.3 gr, 28 in = 196.65 gr15 mm width: 8 in = 59.9 gr, 9 in = 67.42 gr, 20 in = 152.93 gr, 22 in = 169.44 gr, 24 in = 186.45 gr, 26 in = 198.26 gr, 28 in = 215.71 gr16.25 mm width: 8 in = 77.29 gr, 9 in = 87.8 gr, 20 in = 202.83 gr, 22 in = 221.47 gr, 24 in = 245.22 gr, 26 in = 261.69 gr, 28 in = 287.69 grOther Specs:Clasp / Connector: LobsterFinish: PolishedGender: Men'sManufacturing Process: CastedChain Type: CurbMaterial: Sterling SilverPurity: 925