Babyzen Yoyo Connect Frame (White)In A Single Click, Yoyo Turns Into A Double Stroller Thanks To Yoyo Connect, An Accessory That Hooks Onto The Back Of Your Stroller. Whether Your Children Have A Small Age Gap Or Are Twins, The Stroller Come In A Single Click, Yoyo Turns Into A Double Stroller With Yoyo Connect, A Unique Accessory That Hooks Onto The Back Of Your Stroller. Whether Your Children Have A Small Age Gap Or Are Twins, The Stroller Comes With Up To 5 Different Possible