Size does matter!
I purchased the original kit to help with E.D.  When I got the kit, I found the standard tube was not large enough in diameter for me. That tube is tapered with the pump going into the larger diameter end of the tube.  I then ordered this larger tube, which is made to use the original pump, but has a larger opening on the other end (not tapered like the original).  This extra room was what I needed and has made this product very useful now.  I could have save some money, if I had known and just ordered the pump and this tube to start with.
Rating: 5 stars