As Bib said, I used the kind of PVC pipe that is used for water lines and such. It is hard but easy to bend when heated.
Be very careful with uli things, its not easy to understand how much pressure it gives, which is A LOT. I also went overboard my first time and ended up with a numb unsensitive dick for around 24 hours. I remember not wanting to remove it becouse the stretch felt real good. I only realized my mistake after I removed it.
I would advice people to never go over 10 minutes. I use it for 5 min now before jelqing when working on girth. I think this is a safe start and will gradually increase time and sets.
Just wanted to briefly fill you in on my progress.
I’ve been doing the extreme Uli’s for a couple of weeks now. Feels absolutely awesome. What I’m doing at the moment is what I call the Bath Session.
I never used to do my PE inside the bath, but because Bib was talking about the importance of applying heat while doing the Uli’s, I’ve decided to try the whole thing inside hot water. It feels great. What I do is 3 sessions of 10 minutes extreme Uli inside the hot water, for at least 50% of the time I’m grabbing my ring and pulling it forward to create more expansion. Pretty heavy stuff, the expansion is the biggest I ever got. Between the Uli sessions I do 3 pumping sessions. I don’t have a water pump, but pumping inside the hot water works fine, as long as I keep the pump itself out of the water. Because of the hot water I am able to pump with much higher pressure than usual. It just feels ok. So I do 3 pumping sessions of 7 minutes each with a pressure of about 7hg. I make sure my dick is completely covered with hot water inside the cylinder.
So basically this is Uling and pumping for an hour inside hot water.
The flaccid hang I get for a few hours after is something I never seen before.
Come away, O human child! To the waters and the wild With a faery, hand in hand, For the world's more full of weeping Than you can understand.