Necklace Clasp Set: Necklace clasp set comes with 6 pcs chain extender and 6 pcs magnetic lobster clasps. The necklace extender is available in three sizes, which are 2 inches, 4 inches, 6 inches, and the magnetic closures are in 3 styles which can match your diverse styles of jewelries. Multiple Applications: The magnetic necklace clasps can be well connected to most jewelry, necklaces, bracelets, etc. Necklace extensions can apply as an extension of jewelry, can help adjust the length of the bracelet or necklace, shiny and gorgeous appearance, make your bracelet and necklace more distinctive. High Quality Material: These jewelry extenders are made of high quality stainless steel and the magnetic lobster clasps are made of strong magnetic metal with silver plated alloy, they are strong enough to support pendants and ensure the clasp stays connected throughout the day. Easy to Use: Our magnetic clasps have strong holding strength, easy to hold when they are close to each other. The jewelry extenders and magnetic clasps for jewelry are tarnish resistant and designed with classic lobster claw clasps on both sides that are easy to put on and take off, snap open, snap closed, and done Warm Tips: When making bracelets and necklaces, you need to consider the length of the magnetic lobster clasp, such as the bracelet, the length of the chain plus the length of the magnetic lobster clasp is only slightly larger than the circumference of the wrist.