Glass pyramid cup bearing in a wooden disk. The largest part of the wooden disk measures approx 1 inches in diameter and is 1/2 inches high. The hole in the base of the pyramid that this plug fits into is approximately 3/4 inch. Comes in assorted colors. Fits pyramids 16721 , 16722 , 16725 , 16730 , 16732 , 16797 , 16798 , 16799. The glass cup is 13mm in diameter.