The shell is steam bent in one piece made out of 9 layers of veneer. These layers are always lined with Indian cotton on the inside.
The chair is available in 9 natural wood types and in 12 colours in fully lacquered (the grain is NOT visible and two chairs will always be identical) and coloured ash (the grain is visible and two shells might not be 100% identical). It is available as front upholstered and fully upholstered as well.
The base is made of chromed steel and comes in 2 heights (43 cm / 46 cm)
Additionals: Series 7 is stackable - up to 12 pieces and comes with linking device and writing tablet.