So I really love this KorGlovs , what they are is the very same as a Tens machine but in a glove, very powerful and easy to work, the only issue I have is that they are way to big for me, when buying them I wasn’t give a size option so didn’t know until I got them how big they are, so for them to work on my hands I have to pinch my fingers hands and make fists , there so good can feel it in my arms also , would recommend for sure just be mindfulness off sizes if you have small hands