Adjustable student chair "Extra P plastic STAND-UP" gr. 2-4, 3-5, article ST-01. 2-4, 3-5, article number ST-02

Student adjustable chair "Extra R plastic STAND-UP" gr. 2-4, 3-5, article number ST-02. The seat height is adjustable and corresponds to the height group: 2-4 (300-340-380 mm), 3-5 (340-380-420 mm).
The lower part of the frame is made of thin-walled cold-rolled, electrically welded. The upper part of the adjusting mechanism is made of thin-walled cold-rolled, electrically welded pipe. The upper part of the chair frame is made of cold-rolled, electrically welded flat-oval tube, the tube is equipped with inner plastic plugs of appropriate size at the ends. Stiffness of the frame is provided by a crosspiece made of thin-walled electric-welded pipe, the crosspiece is fixed by welding between the support legs. The support part of the leg has an arched shape. The base for the seat is made of two stop metal strips forming a platform for fixing the seat.
The backrest and seat are ergonomically shaped plastic with anti-slip zones.
The entire surface of the seat and backrest is matt with a fine relief for a low ... .