From about 6 inches to 8.3 inches!!
I bought the Bathmate Hercules 2 years ago and even though I’ve heard a lot of guys having problems with the pads and valve I’ve had zero problems and it’s still in great condition. Maybe I just got lucky? Anyway, I really want to thank the makers of this pump because it’s been a vital part of my p.e routine and I think that I wouldn’t have been able to get over 2.3 inches without it. In 2 years I went from about 6 inches to 8.3 inches and now I’ve had to stop as my wife has told me I’m getting too big. My routine like most guys is to use the pump for 15 minutes per day and then jelq for 10 minutes and that’s it. So I just wanted to say that it’s a great pump. I remember when I bought it my wife told me I was wasting my money and that it’s all a scam. She’s completely changed her mind now. 😊