Material: Genuine Leather
Hardware: Iron as a base metal for the chain, golden-colored metal lobster clasp.
Extension chain: Gold-colored copper
Dimensions( Approx.):  The maximum length is 5 11/16 inches and the maximum width is 3  inches. The distance between the outer part of the necklace to the clasp is 8 1/2 inches. The length of the chain (with clasp) is 7 inches. The length of the extension chain is 6 inches.