TIMBEE LO Bow Blonde Doll Girl Jewelry Wind Shell Bead Necklace Our necklaces use shell pearls, not the usual cheap plastic pearls. The beautiful shell pearls are costly, very hard, durable and not easily peeled off; The color of the rigid plastic pearl is easy to peel off, the weight is too light, no texture The rear extension chain is a 18K gold-plated copper chain. It is of good quality, very durable and does not fade easily. Because generally cheap metals will fade/rust after touching the skin soon. Not only does it affect the perception, but some will have an odor, people don't want to wear it anymore, and waste money!