This round omega chain necklace is made of fine sterling silver, plated with rhodium, and stamped with a "925" quality mark. This necklace measures 16 inch in length and 1.25mm (16 gauge) in width, secured with a lobster claw clasp, weighs 4.2 gram. This necklace is nickel free and hypoallergenic. Brand: BERRICLE Design: Novelty Style: Chains Occasion: Valentine's Day Resizable: No Adjustable: No Metal Stamp: .925 Sterling Silver Gift Box: Gift Box