I recently got one of the new flow-thru penis plugs from Steel Pleasures <http://www.steelpleasures.co.uk
>, "Collwell's Pipe". It's quite a stretch for me, as the bumps are 12mm, 13, 14, 13, 12, and until I got this plug the most I ever got in was 13mm. But I was so excited that I used my set of Pratt sounds to stretch me open in order to get this plug in. It didn't happen the first time, but when it did--OMG it felt sooo good and full. There is NO chance of this plug inadvertently disappearing in your urethra!. I think this is THE most fantastic flow thru penis plug EVER! It's basically a longer and fatter version of their "Dubai Boy" plug, which I also use as a warmup for this one. Way to go Ralph!