When I purchased my first tube and pump, I received this video. When I first slipped my cock in the tube and pulled a vacuum on it, I came in under 2 minutes because I was so excited. That tube was 2" wide by 10" long. I'm on my 5th tube now and can pack a 3" wide by 10" long tube. It's done wonders for my girth. Pump up thicker than a can of beer now !!!