This thermoplastic mandolin case is made with a high-density, molded polystyrene interior that gently cradles the musical instrument in a perfectly insulated environment. The interior is lined with plush, no-scratch lining that protects the mandolin"s finish. The hardshell case is made for A and F models. The latest technology in hard plastic manufacturing is used to create an exterior that is extremely lightweight, yet will withstand up to 200 pounds of pressure.Rugged and Tough, Withstands Up to 200 lbs of Pressure Without Cracking AxeGuard Polystyrene Interior with Plush Lining