StonKraft 20" X 20" Collectible Green Marble Stone Large Chess Board Without Pieces - Appropriate Wooden & Brass Chess Pieces Chessmen separately availabe by StonKraft Brand 20" x 20" made of Natural Green Stone & Marble. Only Board. No Chess pieces. Alternate chess squares are inlaid using Inlay art also called Pietre Dure or Pietra Dura. Internal square size on board is 2.25 inch approx. 3.75" - 4.25" King Size would be appropriate for this chess board (Not included). Chess Board Square Size = 2.25 inches approx. You can choose to buy from the 10+ choices of Chess Pieces (of Brass, Wood, Marble and Stone) from us Best Compatible Chess Pieces can be easily looked up by typing B00I2NW04Q or B00I2K5PSC or B0136CFXSM or B00HXGBV5C in the search bar on Amazon.