The outer part is made of European cherry wood duramen and walnut. The internal parts are made of other hard woods, such as ash and beech wood. For technical reasons, some other parts, even external ones, may be made of veneered cherry and walnut. Tenon and mortise assembly systems are adopted, while for drawers the dovetail system is adopted. Natural ecologic varnishes are used for finishes, as well as shellac and beeswax.