Art deco was a style of design that became popular during the 1920's and 1930's. It was used chiefly in furniture, jewelry, pottery, and textiles. Most art deco designers created objects that could be mass-produced, rather than such individual works as paintings and sculptures. Art deco was characterized by geometric shapes, smooth lines, and streamlined forms. It featured a look of sleek elegance that was associated with wealth and sophistication. Many art deco works were made of chrome, plastics, and other industrial materials. Art deco designers also used such expensive materials as crystal, ivory, and silver.