The Pain Gone Pen comes in an easy to open cardboard box with clear instructions. It's always tempting to ditch the instructions, but in this case we recommend reading them because there are medical warnings included so you won't want to take any chances. It looks just like a pen. You hold the "nib" against the painful area and it delivers a very small electric shock which some people describe as being "pinged with an elastic band". Our research found that lots of arthritis sufferers swear by this product because it gives them targeted pain relief. The portability of the Pain Gone Pen is fantastic. It's discreet and lightweight so it can go anywhere with you.