The rollers can replace the originals if they fit the glass shower door. I had to sand the holes in the door; they were about half a millimeter smaller. That worked, and the rollers function. My shower enclosure is from 2014. I hope the rollers last at least 10 years.
We use it every day; kids and I use it. Can be a swing, balance aid for exercise, a bridge for toy cars, a slide for plush toys... Lots of ways to use it; it’s up to your imagination.Takes up minimal space at home