You will require an adaptor to attach your to you stroller.

This adaptor is only suitable for the Bugaboo Comfort Wheeled Board and each Bugaboo Stroller has their own specific adaptor.

 

The adaptor is not universal for all Bugaboo Strollers. As such, it is needed for the Donkey3, but the Donkey5 does not require it. 

Note: Bugaboo Comfort Wheeled Board sold seperately.