The gibson j-30 is a dreadnought size guitar with a flat top acoustic model was a square shoulder with Teardrop pickguard. With a mahogany back and sides are attached to the rear and top with fingerboards made of wood. Also with a logo sticker model with plastic tuner buttons and is available in over sunburst. Cutaway versions are also available with pickup / preamp system. Cutaway versions are also available with pickup / preamp system……Continue popular Gibson Guitar J-30