Argentium 935 silver round wire select size and gauge ( thickness)  from tabs at top of listing This is half hard silver, if you need dead soft I have that in my store too. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=310921798606&ssPageName=STRK:MESE:IT

Gauges available 14,16,18,20, 22