Four Convenient Sizes in One Set: This practical set includes durable sterling silver jump rings in 4mm 5mm 6mm and 8mm diameters - perfect for various jewelry projects from delicate earrings to statement necklaces. Size Information: You will receive 16pcs jump rings in 4 sizes it is 4-8mm in diameter 1-2mm thick inner diameter is 2.7-7mm enough for your daily use. Sterling Silver Material: Made from authentic 925 sterling silver that won't easily. Includes a free polishing cloth to maintain their shine. Essential for Jewelry Making Repairs: Perfect for creating handmade chain bracelets attaching pendants to necklaces fixing broken jewelry links making charm bracelets DIY earring designs. Double Wired for Extra Strength: Each ring features a double-loop design that provides superior durability compared to single wire rings ensuring your jewelry stays securely connected.