These uxcell ball chain connectors are super handy little components for anyone working with ball chains. Made from 304 stainless steel, they're rust-resistant and durable enough for long-term use. The double ring design measures 7.3x7.3mm with a 3mm inner diameter, making them compatible with both 2mm and 2.4mm ball chains. The electro-polished finish gives them a professional look that works well for finished projects rather than just functional connections. What's really great is how easy they are to use - no tools required, just slide your ball chain into the connector and you're done. They're perfect for creating keychains, light pulls, jewelry, luggage tags, or any project where you need to connect or terminate ball chains. The pack of 30 gives you plenty to work with for multiple projects or as backups. The stainless steel construction means they won't corrode or tarnish over time, even with regular use. Whether you're repairing existing chain items or creating new ones from scratch, these connectors provide a clean, reliable solution. They're one of those simple hardware pieces that every DIY enthusiast should have in their toolkit.