The locking mechanism of these earring backs ensures that your earrings stay firmly in place, providing you with peace of mind and eliminating the need for constant adjustments. Features -Color:Assorted Color -Material:Stainless steel, silicone -Size:0.40X0.40X0.10 cm/0.16X0.16X0.04in -Personalized diy: back design allows for easy diy, reflecting your unique style -Comfortable and : Crafted with stainless steel, these earring backs provide a comfortable and secure fit. They are designed to be lightweight and non-irritating, allowing for prolonged wear without any skin burden -Convenience and comfort: The flat earring backs provide convenience and comfort. With their elegant disc design, you can easily and comfortably wear them with or earrings, adding to the pleasure of your dates and parties -Wide applicability: They are suitable for all types of earrings, including heavy and dangling ones -Abundant supply: The package includes multiple round disc secure earring backs, ensuring you have an ample quantity to fulfill your daily usage and replacement requirements Package list: 4 X earring backings