1. What You Get Package comes with 18 piece of jewelry clasps converters, with 25 x 6mm/0.98 x 0.24inch(LW) in total size. You can mix and match with different colors according to your personal preferences and clothing style. 2. Sturdy Material These necklace clasps are made of copper, which is sturdy and durable. They are not easy to break or fade, not easy to rust, have strong magnetism, and can be used for a long time. 3. Lobster Clasp Design Our necklace clasp design has a lobster clasp on one end and a ring on the other end, which can firmly fix the two ends of the necklace or bracelet, easily adding extra length to the jewelry to meet your different jewelry length needs. 4. The necklace clasps have a suction function, just tie your favorite necklace or bracelet on the left and right sides of the clasp. They can be easily attracted together, and you can install and remove them in just one second, saving you a lot of time and energy, and allowing you to have a good experience.