Yamaha YM-2400 is a professional marimba with a 4-1/3 octave range from A to C4. It features Acoustalon tone bars for rich and resonant sound, and a sturdy frame construction for durability. The YM-2400 is height adjustable to accommodate different players, and it comes with a set of casters for easy transport. Whether you're a student, a professional musician, or simply someone who loves to make music, the Yamaha YM-2400 is a great choice for a high-quality marimba.