1. Nine balls. 2. The ball can be rotated 360 degrees. 3. The back strap is designed for a variety of hand shapes. 4. The back brush design, when used, the hand can also get a proper massage. 5. Massage related acupoints can relieve mild fatigue or fatigue, relax thighs, arms, knee joints, prolong muscle blood circulation, and promote blood circulation. 6. Easy to operate, durable and comfortable to handle. 7. Weight: 80g. 8. Size: 20x15x8cm.
