4.5mm ID Inside

400 Jump Rings, Silver-plated Brass, 5mm Round, 21 Gauge. Open 5.6mm Inside Jewelry Connectors Chain Links Sold Per Pkg of 500

24 Grams approx 425 rings Jump Rings, Gunmetal-plated Brass 6mm Round, Approximately 21 Gauge Open Jewelry Connectors Chain Links Gunmetal plated Brass 6mm (.236in) Outside, 4.6mm (.181in) Inside Approximately 21 gauge Open jump rings not soldered...

24 Grams approx 425 rings Jump Rings, Antique Gold/Brass-plated Brass 6mm Round, Approximately 21 Gauge Open Jewelry Connectors Chain Links Antique Gold/Brass plated Brass 6mm (.236in) Outside, 4.6mm (.181in) Inside Approximately 21 gauge Open jump...

24 Grams approx 425 rings Jump Rings, Gold-plated Brass 6mm Round, Approximately 21 Gauge Open Jewelry Connectors Chain Links Gold plated Brass 6mm (.236in) Outside, 4.6mm (.181in) Inside Approximately 21 gauge Open jump rings not soldered Rockin Beads...

24 Grams approx 425 rings Jump Rings, Steel Tone-plated Brass 6mm Round, Approximately 21 Gauge Open Jewelry Connectors Chain Links Steel Tone plated Brass 6mm (.236in) Outside, 4.6mm (.181in) Inside Approximately 21 gauge Open jump rings not soldered...