This necklace is 18 inches long and has a magnetic clasp. The necklace is made of 4mm magnetic hematite round beads Model: N004 MagneticBreeze.com's mission is to provide the highest quality healing magnetic jewelry at the best prices possible. Discounts can be arranged for bulk orders by contacting sales@magneticbreeze.com If you have a request for a specific type of product that is not listed in our store or website, please contact us and we will see if we can locate it for you.