Attributes:10K Yellow goldLightweightLobsterPolishedAppx Weight in Grams by Width/Length: (each item will vary slightly)2.5 mm width: 7 in = 0.93 gr, 10 in = 1.15 gr, 16 in = 1.75 gr, 18 in = 1.76 gr, 20 in = 1.94 gr, 22 in = 2.09 gr, 24 in = 2.3 gr3.5 mm width: 7 in = 1.38 gr, 8 in = 1.52 gr, 16 in = 2.74 gr, 18 in = 3.02 gr, 20 in = 3.39 gr, 22 in = 3.54 gr, 24 in = 3.87 gr4.4 mm width: 7 in = 2.07 gr, 8 in = 2.31 gr, 16 in = 4.15 gr, 18 in = 4.63 gr, 20 in = 5.07 gr, 22 in = 5.54 gr, 24 in = 5.99 gr, 26 in = 6.74 gr5.35 mm width: 7 in = 3.02 gr, 8 in = 3.24 gr, 16 in = 6.15 gr, 18 in = 6.91 gr, 20 in = 7.57 gr, 24 in = 8.72 gr5.75 mm width: 22 in = 8.16 gr, 26 in = 9.52 gr6.25 mm width: 7 in = 3.88 gr, 8 in = 4.45 gr, 18 in = 9.01 gr, 20 in = 9.65 gr, 22 in = 10.36 gr, 24 in = 11.52 gr, 26 in = 12.29 gr7.3 mm width: 7 in = 4.86 gr, 8 in = 5.34 gr, 18 in = 11.12 gr, 20 in = 12.28 gr, 22 in = 12.86 gr, 24 in = 14.57 gr, 26 in = 15.21 grOther Specs:Clasp / Connector: LobsterFinish: PolishedManufacturing Process: CastedManufacturing Process 2: Machine MadeChain Type: FigaroMaterial: GoldPurity: 10K