The  Studio 49 AM500 Alto Metallophone is from the Easycussion Series, with pentatonic scale, Tonal range c-d-e-g-a-c with do-re-mi-sol-la-do shown on the bars. 6  bars (35 x 6 mm), incl. 2 mallets PKS 1, measure: 38 x 34 x 10 cm

Because of the pentatonic scale there will always be a harmonic sounds between instruments no matter which tones are played in whatever order.

They are easy to play due to  the wide bars Fixed bars, Mallets are fixed to the box, Highly appropriate for musical accompaniment as well as for playing simple melodies, The compact construction allows the instrument to be played either on your lap or on the table,