For Sale:

Arca Swiss Cube C1 Geared Tripod Head 
Comes with RRS Clamp

This head is used but is fully functional. Comes with Really Right Stuff manual Clamp. The base tilt knob is slightly bent but does not inhibit operation other than adding a bot of resistance. This knob tightens the base tilt function and locks it in place. All other geared functions and panning functions also fully functional.

From the manufacturers website......

The Arca-Swiss C1 Cube is a three-axis panoramic head with a 66 lb load capacity, making it ideal for use with the heaviest cameras while maintaining a high degree of accuracy. The C1 Cube allows for finely-calibrated gearless panning adjustments with tension control. The two panoramic axes permit you to first center the Cube's controls to your position with the bottom axis, and then readjust the camera to point straight ahead with the upper axis. The gears' rubberized knobs give pinpoint control even when wearing gloves, and don't obstruct the head's movements. On the bottom there's a hinge allowing 62° tilt so that most cameras can reach the 90° vertical position. On top of the Cube there are two bubble levels and Arca-Swiss' Classic style quick release clamp. Although universal, the Cube's main use is in architectural and studio work, where precise movements and adjustments are required. Also suitable for macro photography, its design allows far fewer focusing readjustments while creating images. It essentially places the camera inside a sphere, as if the axes met at a point upon the image plane itself, with the camera rotating around a stationary image plane. This engineering feat was achieved to minimize movements to the optical system's entrance pupil during composing, making for speedier field work free of perpetual height and focus adjustments.

Designed in Switzerland, manufactured in France
Geared x-y axes with adjustable gear tension and 28° of motion
Third 62° tilt-only axis underneath geared adjustments
Rubberized knobs easily manipulated in the cold and with gloves
Movements allow camera's image plane to stay relatively stationary, easing macro work