Extra-1 basic version
Design: Angelo Didonè, Giampetro tosato and Partners
Synchronised mechanism for semi-executive and executive chairs. Seat-backrest synchronised movement ratio 2.4:1. The backrest can be adjusted over a range of 25°. Structure made entirely of steel.
Patented tilting lock system and easy location in 5 positions, with backrest anti-shock system.
Possibility (optional) of using the steel armrest fixed to the seat plate by means of screws.
Controls via rotation knob for locking and adjustment of spring intensity according to user requirements. Gas height adjustment by means of rotation lever.