X8 Drums X8-CT-KLB Coconut Kalimba Thumb Piano This coconut kalimba thumb piano features a gecko carving on a mahogany front plate The shell of the instrument is an actual coconut that resonates quite well when the 7 metal keys are played To adjust the sound, just tighten or loosen the two screws on the top of the piano The outside keys play the higher pitches while the longer keys produce lower notes This is a fun instrument for players of all ages and requires no real skill to make music