Adjustable pupil's chair

The seat and backrest are made of bent-glued plywood at least 8 mm thick, coated with colourless varnish. Or the seat and backrest are made of bent-glued plywood at least 8 mm thick, coated with coloured decorative plastic. The metal frame is made of 25x25 mm and 20x20 mm square section profile with wall thickness not less than 1.2 mm and covered with powder paint resistant to chemical and mechanical influences. At the free ends of the pipes there are plugs made of impact-resistant polymers. The frame of the chair has polymer feet to prevent damage to the floor covering. The seat and backrest are fixed to the base using furniture bolts and nuts. Height adjustment is done with screws with Erickson nut. All fastening hardware on metal frames is hidden inside the tube to extend the life of the product. The chair is colour coded according to height groups.