GRG7221 7-string Electric Guitar Black. The Ibanez GRG7221 is purpose-built for high-speed, low-drag shredding – in all its 7-string glory. It all starts with the RG body style, which is primed for players with attitude. The GRG7221 gives you an amazingly fast maple neck and a resonant, well-balanced poplar body. You’ll love how this guitar feels as soon as you pick it up. Turn up the heat with this guitar’s outstanding dual hot humbucking pickups. Get your hands on this magnificent Ibanez and prepare to shred.