Theory is when you know everything but nothing works. Practical is when everything works and no-one knows why. “Pratica” is a combination of theoretical and practical.Pratica is available with or without armrests , with base , seat and back in plastic combined in white or black color or with polished aluminum base. The seat and backrest are of cold foam with a special density that makes them extremely comfortable. The multifunctional mechanisms are fully built into the seat.