Adjustable pupil's chair

The seat and backrest are made of bent laminated plywood with multilayer coating of colourless varnish. The backrest has a curve, all corners are blunted and have a radius of rounding.
The frame of the product is made of square steel pipe and has a welded all-metal construction with a durable polymer coating. Fastening of backrests and seats to the frame is made by one-sided rivets, which will make it difficult to disassemble the structure without special tools.
At the free ends of the pipes there are plugs made of impact-resistant materials that do not damage the surface of floor coverings.
Height adjustment of the chair is carried out at three points using Erickson nuts.