OBN83B is a swivel office chair with a backrest of black polyester mesh and a padded fabric seat. The armrests form a closed loop fixed to the seat frame, and the whole thing stands on a five-arm chromed base with five castors.
How much room it takes
The base is 60 cm across — and it is that circle, not the 54 cm width of the chair itself, that has to stay clear under the desk and towards the wall. Overall height moves between 92 and 101.5 cm depending on how the gas lift is set.
The castors are 50 mm in diameter, and the manufacturer states they suit both soft floors such as carpet and hard ones such as laminate. The chair weighs 12.6 kg packed.
How it sits
The seat rises from 43 to 52.5 cm, a range that covers a standard 75 cm desk top. It is 48 cm wide and 50 cm deep in usable terms — at that depth you sit upright, with your back against the backrest.
The backrest reaches 49 cm above the seat and tilts back: the chair has a rocking function. The armrests sit 19 cm above the seat, a little below the 20–25 cm that suits forearm support, and they are not adjustable. Maximum load is 150 kg, and the manufacturer recommends use of up to eight hours a day.
What it is made of and what is in the box
The backrest is covered in polyester mesh, the seat in polyester fabric over foam, the base is steel and the armrest stem is metal. The mesh lets air through over the full height of the back, which an upholstered backrest does not.
The manufacturer lists the swivel chair, a bag of fittings and a manual in German, English, French, Italian and Spanish as the delivery contents.
