... This USB massage ball only for massage purpose, not for medical treatment Massage human body for shoulder, thigh, waist, nec Features: 1) Massage human ... neck, back side, feet and hands 2) OneFeatures:1) Massage human body for shoulder, thigh, waist, neck, back side, ... 8) Different colors are available 9) This USB massage ball only for massage purpose, not for medical treatmentPacking: color box USB ...