The unit comes in two models one with internal illuminated square acaralic box & one with only round plate. The unit operates on 230v ac & when switched on it rotates continuosly at very slow speed one with acaralic box has four semitransperent acaralic pieces. Name, products & pictures can be screen printed on them. the internal light source illuminates the box. The unit is extermely useful for display, advertising applications & exhibitions.The unit is sturdy , attractive & eye catching.