What is Click & Lock: Click and lock is a brand name. These jump rings are cut Flush and they make an “click” sound when closed properly

Pack Size - 100 per pack or 200 per Pack

ID - Inner Diameter Roughly 1.6 / 1.4mm 

OD - Outer Diameter 2.5mm

GA- Gauge

14k Gold Filled - 14k Rose Gold Filled - 925 Sterling Silver