Rockville RCGT6.0BL 6' 1/4'' TS to 1/4'' TS Instrument Cable-Blue 100% Copper<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> All Rockville pro audio cables are made with 100% copper which boosts the efficiency of the cable </span></li><li><span class="a-list-item"> There is nothing better than 100% copper </span></li><li><span class="a-list-item"> Most of the cheaper cables on the market do not use 100% copper， instead they make their cables with CCA (Copper Clad Aluminum) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41-XJdE%2BShL.jpg" noproxy>