Shell Material: Plastic
Bearing material: Iron
Rotation time: 1-2minutes
Size: (Dia.)X(H) 5.5X3.5cm/2.17"X1.38"(appr.)
Suitable for adults and kids aged over 10 years old.
Mini enough to put in your pocket, have fun anytime.
It can help to relieve stress and improve physical and mental health.
It also can help people quit smoking, ADHD, obsessive-compulsive disorder, anxiety, post-traumatic stress disorder, insomnia or meditation.