Adjust saddle height
Kwiggle is made for people between 1.35 m and 1.95 m.
You only need to adjust two screws and have set the right saddle height once for you. And that with sufficient top tube clearance.
The special touch: When unfolded, the Kwiggle always has your saddle height set once, when folded together, Kwiggle has the same folding size for all.