💪💪Automatic start design, need to push the core in the direction of the arrow, start by the internal spring, very easy and convenient.
💪💪When it rotates, the cool colored lights inside will light up. It can kill time and add fun while restoring muscle soreness.
💪💪It has no battery and no charge, and the more you spin it the more it tries to get out of your hand, making it perfect for building your wrist strength.
💪💪The convenient design can be carried anywhere, whether in the office, gym or at home, it can be used as a toy to decompress at any time, and it can also exercise arm muscles.
