3.6mm ID Inside

100 Jump Rings, Gold-plated Brass, 5mm Round, 22 Gauge Open Jewelry Connectors Chain Links Sold Per Pkg of 100Gold Plated Brass5mm Round 22 GaugeOpen jump rings not soldered100 per package

100 Jump Rings , Silver-plated, 5mm Round, 22 Gauge Open Jewelry Connectors Chain Links Sold Per Pkg of 100 Silver-Plated 5mm Round 22 Gauge Open jump rings not soldered 100 per pack

400 Jump Rings, Silver-plated Brass, 5mm Round, 21 Gauge. Open 3.6mm Inside Jewelry Connectors Chain Links Sold Per Pkg of 400 Silver Plated Brass 0.7mm thick 5mm outside 3.6mm inside Open not soldered 400 per package

1000 Jump Rings , Antiqued Gold-plated Brass, 5mm Round, Approx 22 Gauge Open0 Antiqued Gold-Plated Brass Approx 5mm Round 22 Gauge Open jump rings not soldered 1000 per pack Rockin Beads (TM) Brand comes with Rockin Beads Size Gauge Card