Head Massager, Protable Hand Held Steel Ball Run Blood Circulation Tool, For Kne Features: Unique ball massage ball design,Relax the scalp and eliminate nervousnessErgonomic design perfectly fits in your palm and is easy to hold. Massages your scalp in the shower to ease itchiness and promote blood circulationHandy portable, no battery or charging, suitable for home or office, travelVery easy to operate, comb the scalp, you can adjust the massage according to their needsInsist on daily use, Improving sleep quality and helping you combat fatigue and feel more energized in all day. Not only fits for your head, scalp. Also works for your neck, leg, arm, back, body. Greatly relaxes stressed muscles