Regal RD-40NS Studio Series Squareneck Resophonic Guitar - Natural Spruce top and quarter sawn mahogany back and sides recreate the classic look and sounds of the 30's Original style squareneck with a smooth, rich finish provides solid resonance and sustain Golden Gate's patented spider and US made aluminum cone resonate with crisp clarity Saga's patented Power Reflex resonator chamber produces unsurpassed volume and tone Sealed die-cast 15:1 tuners provide precise and accurate tuning To learn more, please see our Product Description below