FLEOR Pyramid Style Black Mechanical Metronome Ideal for used with Piano Keyboards Guitar Violin Drum Musical Instruments

Driving parts of metronome is using special groove design?reducing friction, not need to add lubricants, better to extend the movement service life. Metronome is on-toxic, no smell ,environmentally friendly materials, nylon movement & precision spring mechanism and metal, with hard ABS plastic outer. Black color. Not battery required, no extra payment for battery, no need to change battery,this metronome will works as long as winded up. Adjustable working pattern, you can set a temple ranging from 40 to 208bmp and the metronome bell belling every 0,2,3,4,6 click. Mechanical metronome not only used for the Guitar /Bass/ Violin /Piano or other instruments rhythm practice, also can be used in such as hypnosis, psychotherapy, golf, dance, and etc.