All of these are great strollers...I really did love them while I had them.
Teutonia Klikk
Link to Combi Twin Savvy page
The Pliko has the carseat adapter bar on it here...it looks better with the normal bumper bar.
The above two photos are the Unibig and Pliko side by side.
There is not much difference in the fold of the two strollers. Both stand on their own when folded too.
