Metal Color: Gunmetal; material: Iron; can be used as a connector where a single ring is desired. These jump ring are perfect for your handmade jewelry making. It can be used for necklace bracelets earring anklet bag handbag keychains Usage: Split jump rings are used as a connector where a single ring is desired. Use for the female half of clasps, hooks and other fasteners. These open jump rings are not only for jewelry making, but also for repairing jewelries, necklaces, bracelets,and so on projects 6 Sizes: 4mm/5mm/6mm/7mm/8mm/10mm, about 3.38.6mm inner diameter, single wire: 0.7mm; 1070PCS totally. Full size and sufficient quantity it can meet your various handmade needs, a open jump rings great for adults who like jewelry making Meaningful Gifts: Make unique bracelets, necklaces and anklet! You can enjoy the DIY activities and also give the finished products to friends, family as gifts on birthdays, anniversaries, valentine's day, mother's day, etc Easy to Use: Perfect for any project you have, whether to make chainmail armor, try out new weaves, make spectacular jewelry items or something else entirely! Great for DIY your special & unique jewelry