Material: These earring backs replacements are made of real full 925 sterling silver material with 18K white gold plating. They are non-fading, nickel-free, lead-free, and non-irritating for sensitive ears, making them hypoallergenic and safe to wear. The screw backs are designed to be durable and shiny forever. Convenient Package: Each package includes 20 pcs of earring backs, which are perfect for jewelry making and compatible with most necklaces and accessories. They provide a convenient replacement option for lost or damaged earring backs. Standard Size and Easy to Use: These earring backs replacements are approximately 3.5mm in size, which fits earring posts that are 0.7-0.8mm (0.027-0.031 inches) in diameter. These big backs are easy to grasp, and they provide a tight grip, preventing earrings from falling out or getting lost. The flexible clutch top pad slides onto the posts easily, making them simple to use. Secure and Reliable: These earrings back locking earrings back stay on secure earrings and are not easily lost, ensuring that your favorite earrings remain safely in place. DIY Fun: These earring backs replacements are an excellent choice for DIY earring lovers. They are versatile and can be used for earring back replacement, earring making posts, earring backs, earring making supplies, earring repairing, earring making, and earring replacement backs. They offer endless possibilities for creative expression and customization, allowing you to showcase your unique style. 925 Sterling Silver Earring Backs Earring Backs For Studs Earring Backs Replacements Earrings Backslocking Earring Backs For Studs Backs For Earrings sterling silver flat back earrings