Product Features: Aretha Jewelry only provides the best for you. We only use 316L stainless steel, this will make the jewelry much more shiny without tarnish overtime, and also use a special tech to make it has a lightweight and durable at the same time. The most important is no irritation or allergic reaction. Our design focuses all on details for customer comfortable and versatile. You are able to unclasp it easily but also clasp it securely. NO get caught in hair or pinch the skin at all. why use stainless steel Stainless Steel has increasingly grown as a popular metal choice for jewelry. Although it has a similar appearance to metal, Stainless Steel is much thicker and will not tarnish. Often made without nickel, this metal type is popular among those who may have metal allergies. Containing a more matte finish compared to silver and gold metals with stronger luster, Stainless Steel is a popular jewelry choice among men's jewelry. About Aretha: Aretha is our first fashion brand, we focus on the material and the detail design. We only use 316L stainless steel, this will make the jewelry much more shiny without tarnish overtime. Our design focuses all on details for customer comfortable and versatile. For the bracelet and pendants necklace, you are able to unclasp it easily but also clasp it securely. NO get caught in hair or pinch the skin at all, and even all the edges are smooth without any sharp angle.aretha