This is for the older model City Select stroller (pre 2021). I used only the left and right adapter pieces for my Nuna Pipa car seat in my 2019 baby jogger city select stroller. I didn’t use the other frame pieces that hold the car seat in (not sure if they even are supposed to be used for the Nuna, but maybe for other brands). The only thing missing is the female plastic piece of the buckle that holds the straps together over their lap. I never even used the buckle as my seat felt totally secure without having to strap it over my baby’s lap, but you can probably find that piece easily if you desire it. These adapters were discontinued so can’t be found anywhere. Will ship this in original box to save on shipping costs! The Car Seat Adaptor for the City Select allows you to use your Car Seat with your City Select stroller. It is designed to fit several popular car seat models including those by Maxi Cosi, Peg Perego, Nuna Pipa, Graco, Cybex, and Chicco. Product Features * Compatible with the city select single and city versa stroller * Adaptor brackets included in box