Clear silicone locking earring backs measure 0.47 inch by 0.25 inch 12 mm by 6.5 mm and fit earring posts from 0.028 to 0.042 inch for secure and comfortable wear. Built with an internal locking core fused into the silicone to create a double secure design that helps prevent earrings from slipping or falling out. Lightweight and easy to grip, allowing smooth attachment and removal while keeping stud and heavy droopy earrings firmly in place. Suitable for most stud earrings and heavy styles, making them practical replacement earring backs and useful jewelry accessories or gift options. These clear silicone locking earring backs measure 0.47 inch by 0.25 inch 12 mm by 6.5 mm and are designed to fit earring posts ranging from 0.028 to 0.042 inch. An internal locking core fused into the silicone provides a double secure design that helps prevent earrings from slipping or falling out. Lightweight and easy to grip, they slide on smoothly while keeping both stud and heavy droopy earrings firmly in place. Suitable for most stud earrings and heavier styles, they serve as practical replacement earring backs and useful jewelry accessories or gift options.