Solid copper open jump rings that are saw cut. The material used is made in the USA and is 99.9% pure...Not Plated which usually wears off depending on the process. The wire used is 18 Gauge and the diameter measurement is I.D. (inside diameter). Each batch goes through a cleaning process to eliminate the majority of burrs and saw dust from saw cutting. There are extra jump rings included with each packaged quantity (up to 5 pc. +/-) to cover any manufacturing defects we might miss.
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