Aria Twin 60/40 is the ideal solution for parents with children of different ages. This innovative, side-by-side system offers a split-seat configuration. It's Travel System-compatible, so the Primo Viaggio SIP 30/30 car seat (sold separately) can be attached to the 60in. side with the stroller's retractable anchors, while the 40in. side has a comfortable seat for big brother or sister. And as they grow, the older child can sit in the 60in. side and younger one can use the 40in. seat. The stroller fits through standard doorways and has dual harnesses, hoods and child trays with cup holders. Rear wheels brake effortlessly with one hand and release with a simple push of a button. The Aria Twin also offers all-wheel suspension, swivel front wheels, rear wheel brakes, spacious seats with multi-position backrests, five-point harness, removable, hand washable upholstery, and a spacious basket. Convenient front bumpers/child trays can be opened or completely removed for easy access to baby. There are individual hoods for each seat.