Attributes:LobsterPolishedRoundSolidSterling silverAppx Weight in Grams by Width/Length: (each item will vary slightly)1 mm width: 16in=1.29, 18in=1.44, 20in=1.6, 22in=1.76, 24in=1.93, 26in=2.09, 28in=2.25, 30in=2.41, 36in=2.91.25 mm width: 16in=1.91, 18in=2.15, 20in=2.39, 22in=2.65, 24in=2.88, 26in=3.12, 28in=3.36, 30in=3.6, 36in=4.321.5 mm width: 16in=2.7, 18in=3.15, 20in=3.5, 22in=3.84, 24in=4.19, 26in=4.54, 28in=4.89, 30in=5.24, 36in=6.281.6 mm width: 16in=3.87, 18in=4.35, 20in=4.83, 22in=5.32, 24in=5.81, 26in=6.29, 28in=6.78, 30in=7.26, 36in=8.721.75 mm width: 16in=4.34, 18in=4.87, 20in=5.4, 22in=6.11, 24in=6.66, 26in=7.22, 28in=7.77, 30in=8.33, 36in=9.992.5 mm width: 16in=6.96, 18in=7.79, 20in=8.69, 22in=9.55, 24in=10.42, 26in=11.28, 28in=12.15, 30in=13.02, 36in=15.623 mm width: 16in=12.6, 18in=14.22, 20in=15.78, 22in=14.35, 24in=18.93, 26in=20.5, 28in=22.09, 30in=23.663.7 mm width: 16in=20.52, 18in=23.27, 20in=25.81, 22in=28.08, 24in=31.13, 26in=33.32, 28in=35.9, 30in=38.664 mm width: 16in=21.12, 18in=23.41, 20in=25.82, 24in=31.35, 30in=39.855 mm width: 18in=39.21, 20in=45.15, 24in=54.12, 30in=66.576 mm width: 18in=52.6, 20in=58.84, 24in=72.27, 30in=88.41Other Specs:Clasp / Connector: LobsterFinish: PolishedManufacturing Process: Machine MadeProfile Type: RoundChain Type: Spiga (Wheat)Material: Sterling SilverPurity: 925