The House of Staunton The Library Grandmaster Chess Set, Box, and Board Combination - Ebonized Boxwood and Natural Boxwood Materials Used: Ebonized Boxwood,Natural Boxwood King Height: 3.25'' inch / 8.26 cm King Base Diameter: 1.325" inch / 3.37 cm Board Dimensions: 17.5" x 17.5" Total Number of Pieces: 34 Chess Pieces, including 2 Additional Queens (for Pawn Promotion)