The Inferno seat construction has a tilting bracket, giving superior seating comfort. The chair has a slight flex in seat and back. Inferno comes with a floor plate, with a 4-leg base and with a 5- leg base – the latter with gliders or on castors. The standard version of the Inferno chair has return mechanism. The armrest is as standard in black PUR – often upholstered with leather. Inferno also comes with a wooden armrest or mounted with the Tonica Easy armrest. Upholstery in fabric or leather.