* MATERIALS: 14KG FILLED, 14K Rose Gold Filled, or Sterling Silver * STONE: Freshwater Pearl * BALL BEAD SIZE: 2mm/4mm * LENGTH: 6" + 1.5" Extension * made with love:) A fresh take on the classic pearl, IVY is modern, fun, and full of flair! What is "Gold Filled" material? It's the most durable metal next to the pure gold. It is a fusion of Gold and Brass usually. The color doesn't rub off, because it's FUSED not PLATED.