Covers are large and heavy and a real pain to take on and off. I've owned several. For my travel trailers, it took work as others have pointed out to put on and take off.
A pool noodle cut in 3" pieces work well for the gutters/downspouts. You'll want to cover them. A tennis ball works well too. Just cut a slit in it the shape of the end of your downspout.
You may think you can put it on and take it off by yourself.. don't. Two or three helpers really are a good idea. Every time I damaged mine it was when I was doing it by myself. They are just too large and will get snagged on something.
I really liked the Adco Tyvek cover similar to these.
"ADCO 34842 Designer Series Gray/White 22' 1" - 24'"
https://www.rvpartscountry.com/tyvek...inch-24ft.html
They make them in all sizes.. make sure you measure your RV.