Pupils' chairs non-adjustable rigid type I numbers 1,2,3,4,5,6,7 models ST-U¹1, ST-U¹2, ST-U¹3, ST-U¹4, ST-U¹5, ST-U¹6, ST-

Material of manufacture of seat and backrest is plywood with outer layers of veneer; hardwood. The surface of the seat can be flat or recessed. The frame is metal, without height adjustment. The frame is made of a square tube with a wall thickness of 1.5 mm. The open ends of the pipes are covered with plastic plugs. The metal frame is powder coated. The seat and backrest are coated with transparent protective varnish. The seat and backrest are fastened to the metal frame of the chair using 6 rivets. The corners of the seat and backrest are rounded.