The Atlas by Matthews Fan Co. Dagny Dual Rotational Ceiling Fan with LED Light Kit takes the retro aesthetic to a whole new level of cool...and light. Dagny is available with metal blades (with metal blade guards), or with solid wood blades (without blade guards). Each fan head is 16" in diameter, and they can be infinitely positioned in 180-degree arcs for optimum air movement. The greater the angle, the faster the axial rotation, with 60 degrees being optimal.