PRG ABS cases are comprised of hard molded plastic with reinforced bumpers and reinforced aluminum valence to guard your cherished rig from the road. Lightweight and extremely durable, your gear will be guarded from the stresses of the road. Internal specs (in inches): lower bout: 13.5 Upper bout: 12.75 Neck: 2 headstock: 13.25 Body length (including button): 18.5 Overall length (including button): 41.