Made of K10YG (10 karat yellow gold) Approximate dimensions: Wire diameter 0.5mm Outer diameter 3.5mm #K10 round ring yu #K10 round ring 3.5yu #K10 material yu 10 karat solid gold ♦︎ Not plated. ♦︎1 piece, available for immediate purchase, regular mail ☆ How about for handmade accessories? The 3.5 x 0.5 size is an item that can be used widely. You can also use it as a round ring for making replacement charms for earrings and piercings. ^ ^ ★ Round rings only for sale. Thank you very much. m(._.)m