Yamaha cases are precisely molded to each instrument to provide a snug fit and prevent jarring. There is a case for every Yamaha instrument. Yamaha cases use riveted metal hinges and latches, which are very durable and easy to operate. They are much less prone to breakage compared to our competitor's molded hinges and latches. All Yamaha cases are made of either plastic, ABS plastic, or wood to provide a strong and durable outer shell.