The Warwick RockBass Corvette Double Buck 5 delivers plenty of that low growl for which Warwick basses are famous. The Just-A-Nut III is an innovation introduced by Warwick in 2007 to give players an easy way to set up their bass to their own playing style. As with all Warwick basses, the RockBass Corvette is crafted from premium tonewoods throughout: an ash body and a maple neck with ekanga veneer and an upgraded Wenge fingerboard.