This clock will add a unique element to any decor. The silver gears of this sleek clock move in smooth, silent and steady circles with each second of time. The clear acrylic enclosed arc protects the reflective silver colored gears on a weighted black base. This clock could easily be considered a piece of art as well as a functional timepiece. The clock operates on one "AA" battery, not included. This item measures 7" wide x 7-1/4" tall.