Bob Duallie Car Seat Adapter & Snack Tray - The BOB Infant Car Seat Adapter allows parents to put their infant car seats into single-seat or Duallie BOB strollers (with Duallie adapter), providing a great deal of flexibility and convenience when traveling. They also include one or two convenient trays, respectively, for sippy cups, toys, snacks, and more. * Solid and secure seat-to-stroller attachment * Adaptable to most popular infant car seats * Folds quickly for easy storage * Single comes with one snack tray and duallie comes with 2 snack trays * It works with the following best-selling car seats: o Britax Companion - 2003 and newer o Graco Snug Ride - 2003 and newer o Graco Safe Seat - 2006 and newer o Peg Perego Primo Viaggio - 2003 and newer o Peg Perego Primo Viaggio SIP - 2006 and newer