Sptw refers to the brand of this product, and 7 is the serial number of this product.

Jewelry, which used to refer to hats worn on men's heads, now widely refers to birds, earrings, necklaces, rings, bracelets and so on made of precious metals and gems. Jewelry is generally used to decorate the human body, but also has the significance of showing social status, wealth and identity.

Generally speaking, pure gold, pure silver or jewelry has stable performance and low probability of skin allergy. However, people with allergies are prone to dermatitis because of some stimuli after contacting jewelry.

Most of the symptoms are itching, burning pain, erythema, peeling, papules, blisters, purulent secretions on the local skin wearing necklaces, rings and other jewelry, and even induce asthma or systemic urticaria. When choosing jewelry, you should first know whether your skin has allergic reaction, and try to avoid wearing jewelry that is most likely to cause dermatitis, such as gold plating, silver plating, chromium plating and nickel plating.