This product contains 18k gold plated sterling silver chain Because the jewelry is a whole body of pure silver, some micro-oxidation is a natural phenomenon, which can be simply cleaned with a toothpaste toothbrush or a silver cloth. The maintenance of sterling silver jewelry should avoid moisture and contact with chemicals (such as perfume). If accidentally touched, it should be dried or cleaned as soon as possible to extend the life of the jewelry (the same is true for k gold jewelry). The texture of the sterling silver jewelry itself is relatively soft. If it is bent accidentally, it is normal, please pull it back by yourself (it is a force majeure factor in the shipping process, and it will be avoided as much as possible). Pendants can be made into bracelets, necklaces, pendants and earrings by consulting the owner (designer).