CALLA - Armchair. Base on castors or fixed with feet. Steel frame. Upholstery with flame-retardant polyurethane foam/heat-bound polyester fibre with elastic strips suspension. Removable fabric or leather cover. The external body can even be covered with cowhide combined with fabric or leather. The armchair is available in two different heights above ground level: high 873/A with castors, low 873/B with feet.