It is adjustable so I believe it would fit on a round front toilet.
Sorry for being so long. I was in hospital and rehab for quite a while. If you can get along with it, I would leave it in place, although it is easy to install and remove. Cleaning is easy with disinfectant wipes. My only gripe is that it is quite hard and there is no lid. The one in my rehab room had four legs to the floor, didn't appear as sturdy, but was very stable. It had a seat and lid that could be lifted and the whole thing could be easily lifted away from the toilet. I don't think it was quite a 5" rise, but it was tall enough for me to use it comfortably. Never learned the brand of it. I never realized there were so many things for us "handicaps" and variations available. In any case, the toilet riser has been a Godsend. I sat on the toilet one night for two hours waiting for some assistance to get off of it. Since getting the riser I have not been "stuck" on the toilet, so even though its hard, its been worth it. As for storage, it doesn't fold up and is fairly bulky. But, in my opinion, the benefits outweigh any inconvenience. Hope this helps and isn't too late for you. Papa
Mine is on a round toilet so I can't answer with any assurance about and elongated toilet. Of course, the box is long gone so no help there.
Unsure not at location installed but if you look at product dimensions you should be able to just about figure out.