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Sabina Lang (originally from Berne, Germany) and Daniel Baumann (originally from San Francisco) have been living and collaborating in Burgdorf, Switzerland since 1990.

Known for many different, usually, large-scale works that include Op-art wall and floor murals and mid-air hanging staircases, here we are focusing on a few of their latest inflatable sculptures/installations from the past couple of years.

From top to bottom:
Comfort #4 (Motiers); Comfor t#4 Paris, part of Nuit Blanche; Comfort #8, Warsaw; Comfort #3, Barcelona.

You can see much more of their work on their website.