Products "Royal Dux" was different from other Bohemian productions of exceptional precision in the transmission of forms and stylistic solutions, detailed performance and original finish. The material that was used by the artists "Royal Dux" in the manufacture of his works, was soft porcelain mass. Soft biscuit porcelain is one of the three main types of porcelain, consisting of a mixture of vitreous substances (Frit), which he also called prithivim porcelain. Part of the mass consists of sand, silica, nitrate, sea salt, baking soda and plaster of Paris. Was invented in the XVI century, in Florence, sometimes called the porcelain of the Medici. Used in "Royal Dux" porcelain biscuit masses were formed by hand molding and sintering at a temperature of 1100 to 1500 degrees with the subsequent author's portrayal.
