Bugaboo Butterfly Comfort Wheeled Board+The Bugaboo Butterfly Kangaroo wheeled board + lets you head out with another child in tow and attaches to your stroller in just a few clicks (adapters may be needed). Key Features Stroll in comfort with an extra child Suitable for toddlers from 2 years old until they reach 44 lbs Flexible board positions for more walking space Detachable seat; your child can sit or stand Easy to store when it's not in use Specifications Weight : 1 kg Dimensions : 52.