These high-quality metal O rings are essential components for jewelry makers and craft enthusiasts. The set includes 1000 pieces of open jump rings in six practical sizes (4mm, 5mm, 6mm, 7mm, 8mm, and 10mm) to accommodate various jewelry-making needs. Made from durable metal that resists corrosion and tarnishing, these connectors maintain their appearance over time. They're perfect for creating professional-looking jewelry pieces, connecting charms, pendants, and other components with secure fastenings. Whether you're a professional jeweler or a DIY hobbyist, these versatile jump rings will help you bring your creative visions to life. The assortment of sizes allows for flexibility in your designs, from delicate pieces to more substantial creations. Package includes approximately 1000 pieces total, distributed across the different sizes as specified.