1. Material Metal 2. Metal type copper 3. Boiler type lobster 4. Chain type cordon 5.GEM type agate 6. Natural shell necklaces, each is made of natural shells with natural beauty and tissues, natural beauty and distinguishing attraction spread. The only example of their species is classic daily parts. They add a refreshing ocean touch to your overall appearance, perfect for summer or holiday clothes. It is made of natural materials and they have natural beauty. The length of the necklace from the inside to the outside: 15+4 inch/17+2 inches. Adjustable cable fits most people. It is light and non -pressure when weaning, it provides an extremely comfortable wear experience with a good tissue. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.