Joolz Seat/Carrycot Lower Adapters Geo³ they will allow you to use your own Geo³ stroller in the double configuration with the cradle in the lower position and the seat in the upper level, or with two seats.
So you can walk happily with your two children, while the stroller remains as compact as a mono.
Remember: if you want to place the carrycot high up, you will need an adapter kit for the high position.
The package contains:
1 set of 2 adapters