Martin doesn’t make a whole lot of 12 strings, so this model is a great offering in a unique Grand J-14 body size, a jumbo/OM style that handles 12-string sounds well. From Martin Guitar’s Website: "Ideal for experienced players looking to build on their skills, the Grand J-16E 12 String is a full-bodied, muscular guitar that generates well-balanced harmonics with a strong, solid low end. We craft it in Nazareth, Pennsylvania, with East Indian rosewood back and sides and a Sitka spruce top, so this powerhouse looks as good as it sounds. We also added scalloped X-bracing to create beautifully resonant tone that fills the room even when unplugged. And, while playing a 12 string can be challenging, our high-performance taper neck makes this one comfortable-playing, big-sounding guitar." Spec: Body Size: Grand J-14 Fret (000 Depth) Bracing Pattern: X Brace Scale Length: 25.4" Brace Shape: Scalloped Fingerboard Width At Nut: 1 13/16'' Top Material: Sitka Spruce Neck Shape: 12 String Back Material: East Indian Rosewood Specs: Body Size: Grand J-14 Fret (000 Depth) Finish Top: Gloss Back And Side Finish: Satin Bracing Pattern: X Brace Scale Length: 25.4" Brace Shape: Scalloped Fingerboard Width At Nut: 1 13/16'' Top Material: Sitka Spruce Neck Shape: 12 String Back Material: East Indian Rosewood Neck Taper: High Performance Taper Side Material: East Indian Rosewood Top Color: Clear Bridge Style: Modern Belly- 12 String- Drop In Saddle Binding: Antique White Bridge String Spacing: 2 5/16" Top Inlay Material: Multi-stripe Bridge Material: Ebony Top Detail: None Bridge Pin Material: Black Tusq Pickguard: Tortoise Pattern Bridge Pin Dots: Mother Of Pearl Brace Material: Sitka Spruce Back And Sides Color: None Brace Size: 5/16" Back Detail: None Back Purfling/Strip: None Back Inlay Material: Black Stripe Heelcap: Antique White Side Detail: None Neck Material: Select Hardwood Fingerboard Material: Ebony Finish Neck: Satin Fingerboard Width At 12th Fret: 2 1/4'' Neck Color: Dark Mahogany Fingerboard Inlay Style: Style 28 Number Of Frets Total: 20 Fingerboard Inlay Material: Mother Of Pearl