Hi there, I'm selling a City Select Double stroller. It's old and used, but it's clean, sturdy and fully functional. It comes with one seat and the attachment for the second seat (second seat not included). It's got wear and tear, as you can see in the pictures, but it still works perfectly. I purchased this used, removed one seat and one set of the seat attachment clips (there are three sets on every stroller). It can still be used as a single stroller or a double stroller (if you buy/have a second seat) OR, you can do what I did and use this stroller to turn an existing City Select double stroller into a triple stroller (see the last picture). It's super easy and the instructions I used can be found on this blog: {url removed}