1. Pen massager 2. Can use as a pen 3. Portable design 4. many colors available 5. great gifts MF-1612 Massager Pen*Vibration massager&ball pen *Not just a writing pen,press the cap on your body's various pressure points to relieve stress caused by headaches,sore muscles,cramped hands,sinus pressure and more.*Power:1xLR1(included)Unit size:142*14*16.5mmRoller