Women's Stainless Steel Toggle Chain Necklace. Premium 7mm Stainless Steel Oval Rolo Link Chain Necklace for Women Featuring Puffy Heart Charm and Classic Silver Steel Color. Waterproof and Corrosion-Resistant, Making it Ideal for Items that are Worn Daily. Bar Toggle Closure. Hypoallergenic and Safe for Sensitive Skin. Charm Measures .75 inches.