Product advantages: (1)Ergonomic neck design, upgraded 6-belt magnetic beads, more conducive to blood circulation. (2)6 ball structure deep massage,fit the neck structure, and make the neck blood circulation unobstructed. (3)There is also a thumb like style, like a masseur to massage your neck. Note: For personal use only. Disinfect and keep clean. Do not share with others to prevent infectious diseases.