Approximately 1144 pieces of 18 gauge vivid turquoise anodized aluminum jump rings with an inside diameter of 3mm. This size can be used in a Diamondback chain Maille weave plus many more. You can also use it with 18 gauge 5mm for the Japanese flower and Japanese lace chain Maille weaves. The options are endless. Jump rings are made in the U. S. A. With American wire gauge (AWG) wire.