The Peg-Perego Primo Viaggio Cup Holder, tested and approved for use with the Primo Viaggio Convertible and Primo Viaggio SIP 5-65 Convertible Car Seat. The Car Seat Cup Holder lets little ones keep their drink close by and securely attaches to the side of the Convertible, for easy access. Perfect for bottles or sippy cups, the Car Seat Cup Holder adjusts for all different types of cup sizes.