4 pcs 14k Gold Filled Bead Tip Secure Clamshell Fold-over Knot Cover 3.5mm / Findings / Yellow Gold Materials: 14k Gold Filled Size: 3.5mm Quantity: 4 pieces Top Quality. Extra-secure fold-over (clamshell) bead tips. Approx. 3.5mm cup. Designed to completely hide you knot. Tips has an extension wih a hole on both sides. There is 100 times more gold in 14 kt. Gold filled (rolled gold) than in gold plate. A 14/20 Gold Filled piece is usually considered as a lifetime piece of jewelry.