Width: 4 mm (⅛ inches); Thickness: 4 millimeters; Length: 36 inches; Clasp: Lobster-Claw; Weight: 32 grams Features a solid brass core (a strong metal made of mainly copper & zinc) assures durability & longevity (even with regular everyday use) LOOKS FEELS & SHINES LIKE PLATINUM: features an approx. 0.12 mils (3 microns) thick layer of rhodium plating with a highly polished glossy finish effectively giving you the look & feel of traditional platinum or white gold jewelry at just a fraction of the price Microfiber jewelry polishing cloth + black velvet pouch included