As your family grows the iCandy apple multi-mode system can be upgraded to the iCandy pear multi-mode system with the addition of the unique multi-functional pip converter upgrade pack. Larger wheels balance the additional weight, and the pip allows you to create over twenty different combinations to suit your requirements. The multi-position seat units easily convert into bassinets using the bassinet converter fabric, and a pair of lower infant car seat adapters enable you to add a Maxi-Cosi infant carrier car seat (sold separately) or a lower adapter frame to add a Graco infant carrier infant car seat (sold separately).