It is a low-pitched musical instrument with a large resonance box attached to a tone plate for one tone of a xylophone. If you hit it with the included mallet, a deep bass sound will echo throughout the box!
There is a one-octave scale from C to c.
Since each person can play each note individually, it is an instrument that can be greatly utilized for music learning, where each person makes use of each individual's strengths while working together to create music.
For example, children can develop their coordination and sense of rhythm by using two or three notes to accompany a song, or by creating an improvised rhythm ensemble with multiple people using different sounds.
You can play anywhere by placing it on the floor, or even in a classroom with desks lined up, on a desk or chair.