The car seat adapter for the Inglesina Trilogy and Quad strollers allows you to use select infant car seats, giving you the ultimate travel solution. This adapter lets you use Maxi-Cosi (Mico AP & Prezi), Cybex (Aton & Aton 2), and Nuna car seats with the Quad stroller, and Maxi-Cosi (Mico AP & Prezi) car seats with the Trilogy stroller.