6mm Connector w/Cubic Zirconium. Single Strand. Sold by the piece This Stunning Connector is Stainless Steel with a 4mm Cubic Zirconium that will give any single strand design an elegant, upscale touch. Experience the allure of our Waterproof Gold Collection, expertly crafted to combine style with functionality. These items are designed to resist tarnishing and wear, maintaining their golden luster for up to two years of daily use. Perfect for crafting durable, elegant jewelry at a great value.