Attributes:Appx Weight in Grams by Width/Length: (each item will vary slightly)2.5 mm width: 7 in = 1.08 gr, 9 in = 1.21 gr, 10 in = 1.3 gr, 16 in = 1.87 gr, 18 in = 2.02 gr, 20 in = 2.2 gr, 22 in = 2.39 gr, 24 in = 2.51 gr, 26 in = 2.75 gr, 28 in = 2.93 gr3.5 mm width: 9 in = 1.92 gr, 10 in = 2.17 gr, 16 in = 3.1 gr, 18 in = 3.48 gr, 20 in = 3.72 gr, 22 in = 4.02 gr, 24 in = 4.33 gr, 26 in = 4.68 gr, 28 in = 4.97 gr4.4 mm width: 16 in = 4.57 gr, 18 in = 4.98 gr, 20 in = 5.72 gr, 24 in = 6.73 gr5.75 mm width: 16 in = 6.93 gr, 18 in = 8.55 gr, 20 in = 8.41 gr, 24 in = 10.06 gr, 26 in = 10.75 gr6.25 mm width: 18 in = 10.04 gr, 20 in = 11.16 gr, 24 in = 13.07 gr, 26 in = 13.82 gr7.3 mm width: 18 in = 12.25 gr, 20 in = 13.57 gr, 24 in = 16.19 gr, 26 in = 17.12 gr8.5 mm width: 7 in = 6.91 gr, 8 in = 8.02 gr, 20 in = 18.63 gr, 22 in = 20.42 gr, 24 in = 22.41 gr, 26 in = 24.16 grOther Specs:Clasp / Connector: LobsterFinish: PolishedManufacturing Process: CastedChain Type: FigaroMaterial: GoldPurity: 14K