The Bugaboo Donkey Duo Extension Set includes 1 black frame, sun canopy wires, black seat fabric, carry handle and raincover. For a more versatile, stylish look, this set comes with all new leatherette handle bars for a luxurious and long-lasting finish. The set is required if you want to create an All Black Bugaboo Donkey Twin or Duo pushchair. To complete a Bugaboo All Black Donkey Duo pushchair you will need: 1 All Black Special Edition pushchair, 1 All Black duo extension set and 1 black sun canopy. To complete a Bugaboo All Black Donkey Twin pushchair you will need: 1 All Black Special Edition pushchair, 1 black tailored fabric set, 1 All Black duo extension set and 1 carrycot base complete. The Duo configuration features a seat for an older child and a carrycot that adapts into a chair when your younger child gets older. The Twin formation includes two carrycots, for younger babies, that transform into seats as your twins grow up. The seats and carrycots can also be used independently of the chassis.