DESC: The Vent-Bettina rotational ceiling fan is thoughtfully designed with its arms gently curving upwards. The fan offers fluid lines and quiet axial rotation. The motor head can be postioned along a 180-degree arc for optimum air movement; the greater the angle of the motor to the horizontal support rods, the faster the axial rotation. A slow, controlled axial rotation is acheived by both motor head position and fan blade speed.- Circulates heating and air conditioning more efficiently than traditional paddle ceiling fans.- Constructed of cast aluminum and heavy spun and stamped steel- Metal blades with guard or ecologically-harvested mahogany blades with no blade guards- Motor mount and fan head knob of genuine marbelized bakelite- Downrods are field-cuttable.