5.5mm OD Outside

100 Jump Rings, Brass, 5.5mm Round, 20 Gauge Open Jewelry Connectors Chain Links Sold Per Pkg of 100Brass5.5mm Round 20 GaugeOpen jump rings not soldered100 per package

Steel Nickel Tone Plated Steel for extra strength, 5.5mm outside 4.2mm inside. Pre Opened straight cut for a easy pinch together. Steel Nickel Tone Plated Steel for extra strength 1mm thick 5.5mm outside 4.2mm inside Pre Opend 400 per package

Works with most Antiqued Gold or Brass pieces. Plated Steel for extra strength 1mm thick, 5.5mm outside 4mm inside. Pre Opened straight cut for a easy pinch together. 400 Strong Jump Rings, Silver-plated Steel, 5.5mm Round, 21 Gauge. Pre Opened 4mm...