Fits all Martin 14-fret 000 and OM guitars. - Black vinyl covered plywood archtop case, padded dark plush interior (olive drab) with accessory pocket. Martin oval name plate near handle, nickel plated. 4 latches total with padlock loop on one near handle. Martin # 433 case. This case is supplied with the new (2012) OM-21. Weighs approx 12 lbs.