PandaHall Elite About 1745 Pcs Iron Open Jump Rings O Ring Diameter 4mm 5mm 6mm 7mm 8mm 10mm for Jewelry Findings Golden Size: about 4~10mm in diameter, 0.7~1mm thick. Quantity: about 1745pcs in total. The package box size is about 4.17x4.96x0.83inches. (10.6x12.6x2.1cm). Package Included: 6 mixed sizes meet your various jewelry making needs. The jump rings tool opener included, perfect for opening and closing jump rings. Usage: Jump rings are used as a connector where a single ring is desired. Widely used on jewelry making, arts, crafts, DIY and so on. Easy to Use: These jump rings are perfect for any project you have, whether to make chainmail armor, try out new weaves, make spectacular jewelry items or something else entirely! Wide Application: Great for DIY your special & unique jewelry, excellent size for suspending small items from delicate necklaces, bracelets, anklets.