The J-45 is Gibson's best-selling acoustic of all time. Nicknamed The Workhorse and first introduced in 1942, this iconic acoustic has become the cornerstone of its round-shoulder, dreadnought line. World renowned for its full, balanced expression, warm bass and excellent projection, the J-45 has been refined to carry this legacy to new heights. This 2019 model delivers a sound with incredible dynamic range, warm mids, and a tight punchy bass. Specifications Body Shape: Jumbo Top Material: Sitka Spruce Back Material: Mahogany Side Material: Mahogany Bracing: Traditional hand-scalloped X-bracing Binding: Multi-ply top, single-ply back Finish: Nitrocellulose Neck Material: Mahogany Neck Profile: Slim Taper Scale Length: 24.75 / 62.865cm Fingerboard Material: Rosewood Fingerboard Radius: 12 / 304.8mm Number of Frets: 20 Frets: Standard Nut Material: Black Nut Width: 1.725 / 43.82mm Inlays: Mother-of-pearl dots Tuners: Grover Rotomatics w/ Kidney Buttons Tuner Plating: Nickel Truss Rod Cover: B/W Pick Guard: Tear Drop Saddle Material: Tusq Bridge: Traditional belly up, Rosewood Bridge Pins: Tusq Under-Saddle Pickup: LR Baggs‚Ñ¢ VTC Controls: 1 Volume, 1 Tone Strings: 0.053, 0.042, 0.032, 0.024, 0.016, 0.012 Case: Gibson Hardshell Included Accessories: Includes Gibson Accessory Kit