We have a used dark brown Graco Duosport Twin buggy (side by side type).
Looks like this https://trashnothing.com/pics/dtfbb
Light weight, folds up flat but is as wide as buggy once folded (not umbrella type)
Easy to put up and down and is quite slim for a double buggy so fits through most single doors.
Large shopping basket underneath.
We got it from a freecycler last year, who had it for about 2 years having also got it from Freecycle, so I guess it has been around a fair while! We have only used it about 5 times, but it works well.
It was quite grubby when we got it, but I gave it a really thorough cleaning and it has been stored indoors.
It comes with a rain cover, but I have not had need to use it. I've actually never taken it out of the bag it was first given to me in, so can't comment on the condition it's in... Sorry!
Given the state the buggy was in, it will probably need a good clean.
To be collected asap.
Only polite responses please, giving your name and contact number and when you plan to collect.
Replies that just say "I'm interested", or "Is it available" will be ignored.