Babyzen invents Yoyo+ bag to ease your daily load.. In seconds, Yoyo+ bag hooks onto your Yoyo+. Sitting on a rolling base, it effortlessly carries 10 kg (22 lbs). Whether you fill it with toys or shopping goodies, your Yoyo+ remains light, stable and maneuverable with its signature one-hand steering. Gone are the days of strollers that tip under the weight of bags dangling from the handlebar.