The tic-tac-toe board is made from black granite. The board comes with beautiful pieces. The Tic Tac Toe game set a welcome part of any office and home’s décor, really adding a nice decoration piece to any house that can also be played at any time! The game board also has four rubber nubs on the bottom ensuring that the board will not slide or move, also protect the bottom of the game board from scratching. The tic-tac-toe game set is perfect for people of all ages and can be played anywhere from your office, home, to outside at the park, or brought over to a friend’s house for game night. It is perfect for all occasions.