Herman Miller Setu Stool chair, multipurpose, height range, lyris suspension seat and back. With ribbon arms. With 5 star base with black yoke medium resistance casters with quiet roll technology for hard floors and carpet.<br />Materials and Finishes:<br />Frame Finish: G1 - Graphite<br />Column Finish: G1 - Graphite<br />Base Finish: G1 - Graphite<br />Suspension Material Finish: 4W31 - Lyris Graphite<br />Warranty: 12 Years<br /><br />Size: 25 1/8"W x 43 3/8" - 51 1/4"H