A travel adaptor converts your nano duo™ buggy into a twin travel system by allowing you to quickly & easily attach the protect™ infant car seat to the frame of your buggy. Move from the car, to the buggy with a simple click - all without waking the baby. Features: Easy attachment to the buggy frame. Safety tested and certified to global standards. Compatible with Mountain Buggy® protect™ infant car seat and many other leading car seat brands - check below for more information. Looking for an adaptor for one infant car seat on nano duo™? See our single adaptor here.