UPPAbaby's Vista stroller is intuitively designed to "grow" with your family! It starts as a single stroller but can easily transform to accommodate up to three children with added accessories and adapters - becoming the ultimate in portability and convenience! Toddler Seat suitable from birth with Infant SnugSeat or Bassinet accessory or 3 months to 50 lbs without accessories.Dimensions:Unfolded: 36″ L x 25.7″ W x 39.5″ HFolded with seat attached: 17.3″ L x 25.7″ W x 33.3″ HFolded without seat attached: 13″ L x 25.7″ W x 32″ HPlay UPPAbaby's video on Youtube.