Armchair from the original design by Joe Colombo, slightly modified to allow correct use at a desk. Backrest cushions are more padded, and the seat was raised. The base is mobile and swivels on two wheels. Fiberglass frame made as in the original design, in moulds with a completely hand work. Cushions in anatomical polyurethane foam covered in Dacron.The external fiberglass structure can be covered in leather, or painted in the following finishes: glossy white, glossy black, metallic bronze, metallic grey, or metallic blue.Metal ring located at the base available in the following finishes: Satin nickel, bright shaded brown, Black Rose gold, bright light gold, matt Champagne gold, bright chrome, bright black chrome, matt satin bronze, bright pink gold, matt pink gold.Given the special manufacturing process, fabric or leather upholstery is not removable.