The HÅG Conventio 9522 has a plastic, five-star foot base. 150 mm gaslift and adjustable height. It is 2 cm deeper and 4 cm wider than the 9520. The seat and front part of the backrest are fully upholstered. HÅG inBalance® technology ensures more subconscious movement. Recessed handle in the backrest for lifting. Armrests available as optional extras.