Closure: Lobster Clasp Length: 9.5 in plus 1.5 in / 24 cm plus 4 cm chain extender Width: Crystal link is 0.48 in x 0.25 in / 0.7 cm x 1.2 cm Weight: 0.6 oz / 17 gr Material: Brass and handset crystals Finish: 18k Gold 0.3 micron plating / Metallic Electroplating