TNK 500 is a program of operational chairs awarded the Red Dot Award Product Design 2012, one of the most prestigious international product awards in the field of design. Ergonomically designed, the seat is fully fitted with flexible sheets in the front and back which allow the user to sit correctly, reducing tension in the muscles. Much more than a formal design it is the sum of functional detail, technique and technology. TNK 500 has a ratchet mechanism that enables locking in 5 positions with a total movement range of 50 mm. The synchronised tilt systems offers the possibility of adjusting the incline of the backrest in 4 positions.