The Baby Jogger 2011 City Select Second Seat Kit in Onyx allows you to convert your single 2011 City Select Stroller into a double. It features a full-size second seat and the second seat mounting brackets. The Baby Jogger 2011 City Select Second Seat Kit - Onyx features: * Features a full size seat with a multi-position seat recline, adjustable sun canopy with peek-a-boo window, adjustable head height up to four additional inches and a five point safety harness with shoulder pads and buckle cover * Second seat attachment brackets included * Seat holds up to 45 lbs Legal Statements: This and all items from Baby Jogger are excluded from all promotions and discounts except where otherwise noted on product detail pages.