Double the security - these earring backs are not your average earring backings. They are made with silicone and brass. Inside each silicone piece are the traditional brass earring backs, but we added the silicone layer to provide double the security. With these earring backs, you will never have to worry about losing your earrings again. Additionally, they have an elegant and fancy appearance, making them suitable for almost all earring styles. *nickel, lead, and cadmium free.  *new! gold vermeil and rose gold vermeil instead of plated brass. * works better for any post side under 3mm.