This item is a set of lobster clasp necklace cords, which is made of copper. It is a great accessories for DIY your necklace, bracelet, jewelry. They are perfect for your homemade jewelry or repairing your existing jewelry or making necklaces and charm clasps. You can also make a special gift with these pendants for your friends and family. Features - ColorAssorted Color - Material: Copper. - Length: 15cm, 12.5cm, 10cm, 7.5cm, 5cm, 2.5cm. - Made of material, fine workmanship and durable. - The chain extender set is in 6 different length and 2 different colors. Different sizes and colors to meet your different needs. - You could add pendants, charms or other jewelry findings to make your own personalized necklace. Or any other jewelry making handmade crafts findings. - Perfect for necklace, bracelet, dangle, sweater chain, anklet, cellphone decorative accessories, etc. - Warm Tip: Dear buyer, Due to lighting effect, monitor’s brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package list: 12 x chain extender