I was fascinated with this product at first sight. I got so excited when I thought about it I had to try it! When I got my package I didn't wait to get busy. I used some lube to get it nice and wet and slowly inserted the tip in to my rectum. I got it over the first bulb and it felt snug. The fun came when I inflated the internal chamber. Then the external chamber. Wow. It was like my rectum was being compressed by 2 barriers. The catheter was in tight and was not going anywhere. I got off before the actual enema! I'll try again tomorrow for the complete trip. Thanks for providing such a cool, unique enema product.