[Material]: Single loop rings are made of iron, and there is a layer of electroplated shiny gold plating on the surface, which is not easy to fade and has excellent performance, hard and durable. [Exquisite Design]: Our jump ring adopts a single ring design, with exquisite design and sophisticated craftsmanship. The golden electroplating layer gives the jump ring a dual function of practicality and beauty. [6 Size]: There are 6 small grids in the plastic box, each of which is an open ring of 4 5 6 8 10 12mm, you will get your desire size for your unique jewelry craft. [Quantity]: 4mm about 400pcs; 5mm about 300pcs; 6mm about 150pcs; 8mm about 100pcs; 10mm about 50pcs; 12mm about 40pcs; totally about 1040pcs / box, the quantity is sufficient to meet your creative needs.Besidesinclude one gold ring. [Wide Application]: Split jump rings are used as a connector where a single ring is desired, or replace worn key ring, discolored key chains, tarnished jewelry. can be used to make more creative DIY jewelry crafts you want.