1. Material: TPR 2. Thick material, comfortable and does not hurt the skin 3. Massage ball structure is uniform, more durable 4. Adapt to the human body curve, effectively relieve body fatigue 5. Bionic massage bumps, deepen the massage intensity 6. Mini size, easy to carry when you go out for sports 7. Diameter: 50mm 8. Weight: about 80g
