The steel is covered with black, gold, rose or blue thread depending on the color you choose. Product dimensions
necklace: 2.5 cm. Chain: 45 cm. long, 1.5 mm. thick. Chain may vary. Weight
7g. It has a 316 L Stainless Steel Steel Structure. 316 L steel is the highest quality among steel products. Steel products do not tarnish, rust, crush, bend or oxidize over time.