Here are 100 tiny copper jumprings that I made. They are useful for all kinds of stuff and are flush when closed. They are made of 22 gauge copper wire. These jumprings have a 2mm outside diameter and a 1mm inside diameter. Since my camera broke on me last weekend with the dreaded E18 message, I can not take a good close up shot of these. This necklace is made of them, I hope this helps give you an idea of what you are looking at. The smaller of the two in the picture. Feel free to e-mail me if you have any questions.