Percussion Plus Classic Red Box Alto Diatonic XylophoneManufactured by Percussion Plus this strong and sturdy alto xylophone gives a superb mellow sound from its four resonating sound chambers. It is made from quality timber and has durable synthetic note bars. Being a part of the Classic Red Box range its tuning is completed to the highest of standards as care has been taken to ensure that the instrument has followed strict precision tuning control to A440 (pitch standard). The Classic Red Box