The Chinese checker game set includes 66 colorful wooden marbles with a diameter of 0.5 inches (11 in each of six colors, 6 extra balls for replacement, if marbles are lost or damaged), easy to store and carry with a storage bag. Chinese checker is a classic game for a whole family, easy to play, full of interest. A perfect fit for family parties, game nights, traveling, sleepovers, gatherings, camping trips and more, great for 2 to 6 players to play simultaneously.