DESCRIPTION: 【Metal Movement】All parts of the movement are made of metal. This can ensure long time use without any fault. It is very important for a beginner 【Incredible Features】Our product uses high quality movement with high precision and stable performance. And it can provide 40-208 bpm beat range and 0, 2, 3, 4, 6 beat selection to meet the requirements of all musical instruments 【Effective Practice Tool】Our product can be used for most musical instruments, such as piano, guitar, violin, bass, drums and other musical instruments. It helps to master rhythm skills and improve your beat and sense of rhythm 【Easy to Use】Remove the stopper at the bottom, wind it up and remove the cover, then set the beat and speed you need before practicing. Even beginners and children can use it easily 【Accurately Play the Music】It can help you develop rhythm, keep tempo, play accurately and increase your musical awareness.