National Reso-Phonic Guitars Style "O", resonator guitar, brass body nickel plated, resonator 9.5" hand spun, headstock style slotted, headstock logo shield, neck material hard rock maple, ebony fretboard, fretboard binding Ivoroid, fretboard markers mother of pearl, 19 frets, fretwire W.106 H.039, bridge type maple biscuit, scale length 25", nut material bone, width at nut 1.825", width at 12th 2.3", vintage-style National brand tuners, upper bout width 10.25", lower bout width 14.00", overal length 38.75", depth of body 3.125", weight 8 lbs 14 oz, hardshell case included