1. Stainless steel material: high-quality stainless steel material, not rusty, durable, with a tensile force of more than 40 pounds. These zippers are of uniform size, smooth surface, and comfortable grip. 2. Adjustable length: The length is adjustable, each beaded zipper is attached with 2 matching connectors, just use scissors to cut between the balls to meet your needs. Simple and convenient to use. 3. Ball chain details: The diameter of each bead is 3.2 mm, size 6, which is the most popular size for bead chains. The zipper is approximately 36 inches (91 cm) long and the package includes 2 silver stainless steel bead chains. 4. Various applications: These zipper extensions are used for ceiling fan chains, high ceiling lights, jewelry decoration chains, sweater chains, dog tags, tag chains, keychain chains, bracelet strings, clothing accessories, body chain harnessescrafts, etc, Widely used in daily life. 5. 100% satisfaction guarantee- team strives for 100% customer satisfaction, and the manufacturer provides a lifetime warranty. If there is any problem with our ceiling fan chain, please contact us and we will be more than happy to solve the problem for you.