Best Necklace Magnetic Clasps for Jewelry shouldnt be complicated.Necklace extender are made of silver.NO nickel and allergy free.stronger and more durable.will never fade,rust,tarnish and it wont ever turn your skin green 12PCS Magnetic Necklace Clasps Size:L 1.38,D 0.35. Easy to Use - Simply tie of your favorite necklaces or bracelets around the left and right sides of the clasp.Lightweight and safe.They can easily attract together you need only takes a second to install on and take off,so could save you much time and energy, making you have a good experience Flexible & Fun Design:Necklace clasps and closures have simple and stylish look,It's easy to wear with your necklace or as an extension to a necklace or a bracelet. suitable for making necklaces,bracelets,anklet chains or other DIY jewelry crafts. Wide Ranges of Applications:nice jewelry tool widely use for DIY Making Jewelrys or as a gift for birthday,mother's day,anniversary, wedding, party or any special occasions.you can also send the finished products to your loved ones as gifts