The UPPAbaby RumbleSeat is an addition to add to you Vista stroller. It is suitable for children from 3 months to 35lbs or 36 inches, which ever comes first. Can be positioned forward and backwards. There are several ways to use this seat, with Toddler Seat, with Bassinet, the MESA Car Seat. Only fits the Vista that is 2015 or later. Includes Bumper Bar and Bug Sheild.