KEGEL BALLS! Anyone tried them????

I hear Kegel balls are good for tightening your pelvic floor and tightening things up for sex etc has anyone tried them? Any that you would recommend?

After giving birth twice... I now have a hard time running cuz I’ll start peeing my pants ... little by little. Especially if I already have to go. This makes exercising very difficult and annoying. There are sooooo many out there, it’s hard to pick. Any suggestions?