Osa is the result of the search for a huge piece of city furniture that had to unite several functions. Therefore the osa designers developed a concrete bench of a length of about five metres with seating space and wooden seats. Osa is vandalism-proof and also provides space for the city’s brochures and information for tourists. The bench is modular and can be arranged around a tree so that its natural shade can be used. With an innovative connector system the individual modules are invisibly linked just like Lego bricks. And what’s best: spots under a glass cover in the recess are submerging the tree trop into subdued light during the night. Osa is individual yet less expensive than a standard piece of furniture – a perfect symbiosis of design, function and economic viability.