Firstly this electric crop is not that strong , I was really scared it might be worse than my shock collar but not even close luckily . I have chronic pain so BDSM helps me control what pain I have and distracts myself from the bad pain . I think this crop is perfect , just make sure once you turn it off, hit yourself a few times with it since it does still hold the charge and will shock whoever may accidentally touch it next. This can be used alone or with a partner , my partner and I loved using it , he used it on me while we were having sex and it feels so good