Using the Babyzen Yoyo as a Double Stroller - Your Stroller Guide
Amazon.com : Twin Stroller Connector for Baby Universal Fits Umbrella Strollers Babyzen YOYO Yoya Etc.. Turns Two Single Strollers into a Double Stroller : Baby
BABYZEN YOYO Connect White Frame - Babyzen | Mothercare Indonesia
Babyzen YOYO Connect Double Stroller - Full Review!