Material: Gold plated over 925 sterling silver, with e-coating to protect the gold color from tarnishing, can last couple of years with normal wearSize: 27*12 mm. 1.3mm thickness. The ring attached on both end is 2.4mm .Weight: 0.67 grams per piece.Quantity: 1 piece.Pictures show the shape, please read the size measurement for the actual size of the chain.