Top Wood: Sitka Spruce Back and Sides Wood: Mahogany Nut With: 1-3/4" Scale Length: 25.4" Nut and Saddle: Bone Bracing: Forward Shifted Scalloped X Brace Pickguard: Tortoise Number of Frets: 20 Case: Martin Hardshell Case Strings: Martin SP Lifespan 92/8 Phosphor Bronze Medium (MSP7200)