We purchased static electricity in winter because I am surprised and painful rather than painful. If you bring this product by hand with touching places, it will flash for a moment. Thereafter no problems at all after touching with hand! It is! Since it is a key holder, it is also good to attach to a key of a car or home, but it is okay not to put it out of your pocket every time you attach to a thing like hanging from your neck, such as an employee ID card, and it is comfortable. It's fun, so I'm having fun by removing static electricity by sticking to iron ones here and there.