McToy Lots of Fun 12 Rubber Bouncing ICY Neon Balls, Multicolor 12 - Assorted Colors ICY BOUNCY BOUNCING BALLS! Makes Great Replacement balls for the Cranium Cariboo Game Hours and hours of kid fun! You get 12 balls with this purchase! 35 mm diameter ( 1 3/8 inch diameter) You get 12 balls with this purchase!