Hi, I was rushed into exercises. I had no partner to help me and a bit of unnecessary complains. I liked the idea of extender. I bought a strapped one, and it was so annoying. I wanted to have fast results, but the pressure was unbearable. I designed many things, and one by one helped me to improve the design, and honestly, I think straps are very dangerous and kinda a torture. I like the idea vac head in PeniMaster Pro, but I am in Iran, and I cannot purchase it, and even I could, ...