The versatile Peg Perego Duette Chassis allows you the luxury of a double stroller for twins, while allowing you to fit different aged siblings as well. This chassis can be pared with the Primo Viaggio Infant Car Seats and Stroller Seats as well, making it a convenient choice for busy moms and dads. The revolutionary steering wheel located on the handle bar makes driving this stroller effortless. The larger wheels and suspension assist in the smooth ride over all kinds of terrain. Please note this item only includes the chassis. All other pieces such as the Primo Viaggio Infant Car Seat and Stroller Seats are all sold separately.