Frame is crafted of steel and engineered wood. Hardware features a Matte Black finish. Height is adjustable and the chair swivels 360°. Leather is a natural product. Variation in color and texture are inherent to each hide; no two pieces are exactly alike. Semi-anilines have natural markings that vary from hide to hide. They also have color variations due to the leather’s ability to accept dyes differently in various areas of a hide. Markings and shading distinguish genuine leather from man-made materials. Appreciating shade differences among hides also means appreciating them on individual furniture pieces, because no two pieces can be produced from a single hide. Contract Grade: Thoughtfully designed and expertly engineered to meet rigorous testing standards and best practices from select ANSI/BIFMA testing protocols. Imported.