Features: -Upper & Lower Adapters for Z4 stroller Model 2021 -Allows you to attach Companion Seats, infant car seats, bassinets or any combination (sold separately) -The Z4 Double Adaptor allows you to convert your Z4 stroller Model 2021 to a combination of stroller with Nido infant seat, or stroller with bassinet or stoller with 2 seats. Nido, Bassinet and Second Seat are sold separately. About the brand Be charmed by the Italian company Peg Perego, which has offered for over 60 years products for babies and children of first quality, safe and of impeccable aesthetic. This company is always on the lookout for the latest market trends as well as your needs as parents. Its strollers, car seats, high chairs and table seats, diaper bags, stroller accessories and more are all designed to make your life easier on the go while bringing comfort and safety to your little ones.