This set comes with stroller and second seat. The City Make a selection offers parents the unique opportunity to customize their stroller into 16 different combinations to suit their circle of relatives needs. Patented Quick-Fold Technology – permits you to fold your stroller in one simple step Innovative multi-functional design allows you to choose your seating arrangement up to 16 unique combinations (with double conversion kits – sold one at a time) Hand operated parking brake 12″ ceaselessly-air rear and 8″ lightweight front wheels with front wheel suspension and sealed ball bearings Swivel front wheels for quick and agile maneuverability can lock into place for long distance strolling Multi-position seat recline for passenger comfort Multi-position sun canopy with peek-a-boo window and adjustable head height Adjustable 5-point safety harness with shoulder pads and buckle cover Multi-position foot well tilt adds leg toughen Telescoping handlebar with wipe clean grip Seat back storage compartment and large under seat basket Protected fold latch for simple transportation or storage 45 lb. weight capacity on per seat City Make a selection Second Seat Kit The City Make a selection Second Seat Kit permits you to convert your single City Make a selection stroller into a double. It comes with the complete second seat and the second one seat mounting brackets .