High Quality Material -- Our earrings are made of high quality brass material, durable, soft, colorfast, with a clear layer of silicones, these silicones earrings are a great choice for men, women. Specifications Dimensions -- Our brass ear nuts are 5mm in diameter, 4mm thick, hole position: 0.9mm. The size of this brass material fits most types of earrings and you can wear it with elegant or casual outfits. Set Includes -- You can get plastic container set, including 2 different colors of earring backs, 30 pcs of each color, total of 60 pcs, white, gold, a large number, you can mix and match at will, and a plastic container for your use. Double Safety Design -- Brass earphoness transparent silicones design keeps your earrings safe forever, silicones backs not only double the protection of your earrings, but good-looking backs are easier to wear with any earrings and everyday wear. Application Range -- Earring locks backs is suitable for almost all types of earrings, earring post, stud, hoop earring, sport clear earring, plastic earring, heavy earring or any comfortable earring.