Works just like the Sit N' Stand Ultra lightweight tandem Folds easily and compactly for storage The patented rear platform allows child that is at least 2 1/2 years old to stand Comfortable two position front seat Accommodates children from 6 months to 45 lbs. Deluxe rip stop nylon fabric Deluxe harnesses include reflective stitching for night time safety Adjustable padded rear seat allows standing child to take a rest Removable canopy with ratcheting adjustment Child tray with cup holder Foam covered handles for both parent and rear standing child Large storage basket under seat The Universal car seat carrier accommodates the following car seats: Graco, Peg, Evenflo, Costco/Eddie Bauer, Baby Trend, Chicco, Britax and Compass.