Fill the air with a soothing resonance by playing the Thomann TRCB-13 Rainbow Chime Bars. These chime bars help improve your knowledge on notes in the harmonic series. There is a total of thirteen chime bars that are assorted in three music scales, C major, E major and G major. A musical note is written on each chime bar making it easy to assemble all the chime bars according to the harmonic series. The provided mallets offer an excellent response from the chime bars when you strike them. A bag is included with this bars for convenience during transport.