Steinberger hard cases offer excellent protection against everyday bumps and bruises as well as providing a safe storage place for your headless wonder! The case is constructed of 7mm plywood, reinforced with steel at all seams and covered with black, heavy-duty, DuraHydeâ„¢ textured vinyl for years of dependable use and beauty. The interior of the case is covered with a contoured, deeply padded plush lining that protects your instrument.