Xylophones are a great instrument that can be used as part of sensory play. The beautify of a xylophone is that not only is it an instrument that can be heard, but it can also make vibrations that can be felt on the skin too.
Each bar is a different length to create a different sound. Shorter lengths have a higher pitch and longer lengths have a lower pitch.
It's a great way for your child to create music and shake their booties.