This is an interesting idea. It does seem to me the chair is too close to the ground and not exactly comfortable looking, but the idea is neat. And I haven’t actually tried it, maybe it is more comfortable than it looks.
Several versions are offered by FlexibleLove. One version:
Dimensions (Collapsed): 64cm x 56cm x 23.6cm
Dimensions (Extended): 64cm x 56cm x 720cm
Weight: 28.5 kgs
Supports weight up to: 1920 kgs