Woodessen Perpetual Calendar with Spinning Tops, Solid Walnut. Beautiful, natural real wood grain. Displays month, date, and day for any year FOREVER. Date markers double as spinning tops for enjoyment. Excellent novelty gift for any office worker. Weighs 5.5 oz / 150 g (Approximate). 7 1/2" wide x 2 1/2" high x 2 1/2" deep.