Rockin Beads Brand， 400 Jump Rings， Silver-plated Brass， 10mm Round， 21 Gauge. Open 8.6mm Inside Jewelry Connectors Chain Links Sold Per Pkg of 400<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Silver Plated Brass</li><li>0.7mm thick</li><li>10mm outside 8.6mm inside</li><li>Open not soldered</li><li>400 per package</li></ul></div><img src="http://ecx.images-amazon.com/images/I/61np%2BJapRNL.jpg" noproxy>