This is a dedicated bag that attaches to the back of the Babyzen YOYO stroller. I purchased a set of items on a flea market site, but I don't need the bag, so I'm selling it. It doesn't appear to have been used much. You will need two stroller hooks to attach it to the YOYO. The dedicated ones are missing, but I think you can use ones from Daiso or similar stores. *Please note that I will be using this until August 14th, so shipping will be after that date. Thank you for your understanding.