Nine overlapping ellipses, made from silvered, hand-blown glass, extend up the wall in a single vertical column. The sequence presents a gradual progression from a narrow ellipse at the bottom to a near-circle at eye level and then back again at the top. Exploiting the visual ambiguity of the ellipse, the work graphically presents the steps in the motion of a disc as it turns. In addition to the progression of shapes, the work displays a change in tones, from deep blue at the top through shades of green and yellow at the bottom. Where the ellipses overlap, the panes are slightly different hues, conjuring the illusion of overlapping transparent discs and shallow three-dimensionality. The silvering of the glass panes turns each into a mirror that reflects the viewer and their surroundings in the pane's respective colour. Irregularities in the hand-blown material – such as ripples, bubbles, and subtle distortions – lend the work a tactile, fluid quality.