Arc Swivel & Personal Workspace ChairArc Swivel & Personal Workspace Chair The swivel provides the same features as the Dynamic 3D tilt chair, with the same added comfort and moveability, except that it is height adjustable only. It is a highly portable chair that promotes flexible working spaces; this is a quality that directly translates into classroom performance as when students can move around, they are more collaborative and engaged. This chair also offers the user an optional arm