Sterling Silver With 14k Antiqued 6mm Simulated Onyx Bangle Bracelet - in 14k Yellow Gold and White Gold - Charm/Element Width: 7.5 mm - Width of Item: 7.5 mm - Charm/Element Length: 7.5 mm - Chain Width: 4 mm - Clasp /Connector: Slip On (No Clasp) - Finish: Polished & Antiqued - Feature: Hinged - Feature 2: Solid Genuine ; Hinged ; Polished - All of our jewelry for women and men are authenticated with a 10K or 14K hallmark and are tested to pass FTC regulations. ::: [ Potential Enhancement Methods: onyx ] - Occasionally stabilized with plastic to enhance durability. Sometimes powdered material is compressed with a binding agent under extreme pressure and heated to bind together small pieces of natural material into a larger whole. Always dyed to enhance the color ::: [ Care and Handling: onyx ] - Avoid exposure to extreme light and heat as stones may fade. Clean with warm soapy water and a soft brush or cloth. :::