ACU Point Pen - Electro - Puncture Massager;

This dual-point pressure stimulator uses self-activating crystals to create a tiny, harmless electrical charge that stimulates the body's natural pain-blocking mechanism for quick, effective relief. Large rounded tip directs relief to neck, shoulders, back and knees. Smaller tip directs relief to ear lobes, elbows, hands and feet. 5 1/2"L.