Construct a real xylophone by joining colored tubes. The sound changes according to the length and shape that the child chooses for the pipes. Xylopipes has open tubes that act as resonators, amplifying the sounds. The pitch of the notes can be varied by changing length and shape, using the 40 pieces included. The various sounds are made by hitting the open pipes with the sticks provided. An original and creative way to introduce children to the world of music. For ages 3 and up. WARNING: CHOKING HAZARD - Small Parts. Not for children under 3yrs.