Shok Industries set out to accomplish one simple task when they produced their Reference CCA cable. The goal was to make the market's most flexible and easiest-to-use CCA cable. Without a doubt, this has been accomplished. The wire comes in a 50' spool. This new version of the Reference Pro has a strand count of 5285 strands, with selected strand being 10% larger, increasing conduction area over the previous Reference series.