I absolutely don't work for Hollister, but I use these rings, and I think they are great! I don't even have to use paste when I use these. Plus, I can tear them in half, and mould them back together into a circle to make them last longer. I have an end-ileostomy, and with the rings I change the bag/flange twice a week.
I just recently started irrigating but have used these rings in the past. I have a retracted stoma (sunk in) and have found these were very helpful in adding the convexity that I needed to my pouch. I would encourage anyone to try them and especially if they are dealing with a retracted stoma.